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High Performance | Weather Resistant Twin Filter + UV Whole House Water Sanitation System (HPF-UV)

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Quick Overview
  • Treats Raw, Rain, Tank & Bore* Water for Households of 3+ People
  • Durable Tamper-Resistant & Weather Resistant 304 Brushed Stainless-Steel Enclosure to Protect Your System
  • Corrosion Resistant Electropolished 304 Stainless Steel Ultraviolet Sanitation Chamber
  • High-strength acrylic (Plexiglass) panel providing clear visibility and protection for electrical components and pressure gauges.
  • Customisable Twin Pre-Filter Options: Choose from Our Range of Sediment and Carbon Filters Compliant to National Sanitation Foundation/ANSI Standard No. 42 in 20" x 4.5" Size
  • Fine Filtration + Fast Acting Sanitisation Kills 99.9% of Parasites, Bacteria & Viruses at High Volume Flow Rates
  • Watermark Certified to Australian Plumbing Standards AS/NZS 3497
  • Quick and Straightforward Installation
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High Performance | Weather Resistant Twin Filter + UV Whole House Water Sanitation System (HPF-UV)

Our NEW High Performance Weather Resistant Twin Filter + Ultraviolet Whole House Water Sanitation System has been specifically designed to withstand the harsh conditions of the Australian environment, protecting your whole house filter investment from UV Exposure, Heat Damage, Corrosion, and Rust, and providing safe, clean, and sweet-tasting water for customers on rain/tank water. Just as you would protect any other system with electrical components from the weather, this unit is a must for those who can't afford to lose access to sanitised water, in addition to maintaining a neat-looking home exterior. This set-up features twin housings with your choice of filters (Filters Sold Separately, see Options Below - we generally recommend the 5 Micron Pleated Sediment + 5 Micron Silver Impregnated Coconut Carbon to improve clarity, tastes, odours and filter life), whilst the chemical-free High Flow Ultraviolet Sanitation System kills 99.9% of bacteria, parasites, and viruses for safe consumption from all outlets including the kitchen, bathroom, and shower. Please Note: Even though the UV System that comes with this kit is capable of filtration at 75-105 Litres Per Minute, the flow rate capacity of the entire filtration system is limited to a max flow of 60 Litres Per Minute due to the 20" x 4.5" sized filter housing.

Diagram of the HPF-UV Filter System Installed

Diagram of the HPF-UV Filter System Installed on a Home
(Note: Tank, Pump, Single Socket Surge Protector & Bypass Valves not included).

Pre-fitted and easy to install thus saving time and installation costs, this solid unit is built to endure from the inside-out, featuring a sleek and industrially-designed 304 Brushed Stainless Steel Enclosure. 304 Stainless Steel is renowned for its strength and resistance to corrosion and oxidization thanks to the tough composition of steel, nickel, and chromium alloy. Chromium, in particular, is what makes this 304 Stainless Steel housing truly stainless, as it prevents the formation of rust with an ultra-thin and strong layer of chromium molecules that protect the underlying steel structure.

This system is both tough and practical, with a high-strength acrylic (plexiglass) access panel that enables quick maintenance and easy viewing of the pressure gauges and countdown timer for the UV lamp, whilst simultaneously protecting the sensitive electrical components of your UV system from rain and tampering (accidental or otherwise). Unlike most basic UV Power Supplies, the High Performance System features a countdown timer to remind you when the lamp is due for replacement, along with a fail-safe alarm to notify you if the lamp blows (e.g. during a storm surge). To ensure longevity and clarity of your Plexiglass panel by avoiding harsh chemicals and abrasive cleaners. Instead, gently clean with a mild soap solution and soft cloth.

The Corrosion Resistant 304 Stainless Steel Disinfection Chamber is large enough to process a considerable volume of water, whilst the High Output Ultraviolet Lamp applies the maximum dosage of UV radiation (40mJ/cm² @ 75L/Min & 30mJ/cm² @ 105L/Min) to kill 99.9% of pathogenic micro-organisms such as bacteria (e.g. E.Coli, Salmonella, Legionella, Campylobacter), viruses, and parasites in tank, rain & bore* water for safe, clean and great-tasting consumption in a household of 3 or more people. (*For bore treatment, refer to the bottom of this listing to read *FILTERING BORE WATER - IMPORTANT INFORMATION BEFORE YOU ORDER*).

The twin cartridge design, based on our Full Sized 20" x 4.5" Reinforced UV Resistant "Big Blue" housings, gives you peak water flow and contact time for maximum impurity reduction, with the freedom to customize your selection of premium-grade Sediment and 100% Coconut Carbon Block filters (see below), which are certified to the National Sanitation Foundation Standard No. 42. Our recommended combinations of a sediment and carbon filter enables the capacity for microfiltration from 20 Micron down to 0.5 of a Micron to block dirt, sand, dirt, silt, plant spores, pollen, and common gastro-inducing water-borne parasites such as Giardia, Cryptosporidium, Entamoeba and Toxoplasma Cysts.

Items Included In the HPF-UV Kit

  • HPF Durable Tamper-Resistant & Weather Resistant 304 Brushed Stainless-Steel Frame, Enclosure, and high-strength acrylic (plexiglass) panel.
  • Big Blue Twin Filter Housings (Pre-Installed on Frame)
    • 2x Big Blue Filter Housings in 20"x4.5" Size (Note: Filters Sold Separately, See Filter Options Below)
    • 2x Pressure Gauges
  • H7-90-AT High Output UV System
    • 1x Corrosion Resistant Electropolished 304 Stainless Steel Ultraviolet Sanitation Chamber (Pre-Installed)
    • 1x H7-90-Lamp - 48W High Output UV Lamp, 4 Pin 436mm length
    • 1x H7-90-Thimble - Quartz Thimble 470mm length
    • 2x GT7-2NSF-OR - O-Rings 23mm outer diameter
    • 1x H7-90-PS - Certified Ballast 42-105W Australian Plug + Earthing Cable

Rain Tank water will always require filtration as it isn't treated like municipal water supplies. In our experience, the most cost-effective and total solution is to use UV Sterilisation, which will ensure 99.9% eradication of all Bacteria, Parasites, and Viruses from your house water supply.

Recommended Replacement Schedule


This system is designed to handle high flow with an average household pressure pump system up to 500 kPa (72 psi), so you should not notice any significant reduction in pressure during regular water usage for an average household with a decent pump. Please note: around 344kPa (50 psi) is the ideal minimum pressure required for use with this system - pump pressures lower than 275kPa (40 psi) may cause excessive pressure drop if installed alongside a whole house filtration system (i.e. low water pressure in showers).


This system is WaterMark Certified to Australian Plumbing Standards (AS/NZS 3497), and will need to be installed by a licensed plumber. Simply order online with free shipping to your home, and once it arrives any local licensed plumber will be able to do the installation (the system also comes with instructions)! When calling around for quotes, be sure to ask about installing a "bypass" so you can still get water into your home when the time comes for filter changes! Normally, a whole house system will be installed after the pump and before the main water line goes into your property. Your plumber will need to source fittings to install the system to your required specifications - because all setups are different, we do not supply fittings with this kit. Please refer to the description for items supplied with this kit. The UV System must be installed directly into a single socket surge protector before being connected to a 240V 10A General Power Outlet (PowerPoint). It must be a surge protector - Circuit Breakers and Residual Current Devices (RCDs) are not suitable substitutes as they do not protect the unit from power surges. All aspects of this Water Filtration + UV System Kit must be protected from freezing temperatures at all times.


All Water Filtration Systems included in this package are certified to WaterMark Standards AS/NZS 3497 under Certificate Number 23247. WaterMark is the standard that is required by law for a qualified plumber in Australia to install any item on municipal town water. All products used under this certification will give you peace of mind knowing that your water filter complies with Australian plumbing codes. Our WaterMark filtration systems are hand assembled here in Australia and are batch tested to ensure quality and workmanship for your filtration products.

How can you tell if a flow rate of up to 60 Litres Per Minute of water flow is suitable for your needs? Please see the below infographic:

Water Filtration Systems

House Hold Water Usages

If you have any questions at all regarding the compatibility, installation, items included with each kit, or added extras, please contact us prior to purchasing.


Do you have Copper Pipes + a Poly or Steel Tank, or a pH below 6.8? If so, please read the below important information to consider:

The issue of tank water acidity is of particular concern for customers with the poly/steel tank + copper pipes combo - this must be addressed in order to prevent copper pipe corrosion and pinhole leaks in your pipework later down the track (which is very costly to fix)! 

Rain water is commonly known to be in a very acidic state (around a pH of 5) naturally, and it is only when it comes into contact with earth or other organic material that the pH rises to neutral and even alkaline levels. However when you have clean gutters and a new clean poly tank (or a poly-lined steel tank), there is no organic or inorganic matter to dissolve into the water to raise the pH, thus you are left with highly acidic water sitting in your tank. This can cause extensive health issues in the long term, but it may also affect your plumbing work throughout your house. Copper is easily corroded by acidic water - if this is happening in your home, you will notice a blue/green tinge which is a signal that copper is dissolving into your water. Acidic water works its way from the inside out and if left long enough untreated, may cause your entire copper pipework to fail and need replacing.

solution to acidic water

Have you checked for signs of copper pipe corrosion in your home? Above are some examples of copper pipe corrosion, which is easily detected by the presence of blue-green staining around drains, fixtures and faucets. In the worst-case scenario, copper pipe corrosion will start with pinhole leaks, progress to multiple holes, and will eventually require you to replace the entirety of the copper pipework of your home!

This brings us to the solution to acidic water - the Calcite Filter. The GT1-18 Calcite Vessel filter features two stages of filtration:

  1. Stage 1: Filter Gravel - Gravel acts as a sand filter, filtering out dirt, sediment, and other particulates in the water.
  2. Stage 2: Calcite Marble - The way Calcite Marble filtration works, is by dissolving traces of calcium into the water to help buffer the pH back to neutral. The Calcite Marble supplied with the Vessel is of the highest quality available in Australia, providing a consistent pH buffer and a long filtering life. On average you will need to refill about 1/2 to 1 bag full of Calcite Marble per year (which depends on water usage + pH of incoming water). 

If you need to address this issue, please consider installing a Whole House Calcite Water Filter | Adjust pH from Acidic to Neutral | 52" x 12" (GT1-18C) in front of your HPF-UV system for the ultimate tank water filtration system.


Under the Hood: WaterMark Certified Twin Whole House Water Filter System 20" x 4.5" Big Blue Filter Cartridge HousingsWhole House Filtration System

The Twin 20" x 4.5" Whole House Filtration System houses your choice of Sediment Cartridges for improved water clarity and protection against particulate matter damage within the UV System, and Coconut Carbon Cartridges to reduce tastes/odours, and impart a subtly-sweet flavour into the filtered water. Please Note: Even though the UV System that comes with this kit is capable of filtration at 75-105 Litres Per Minute, the flow rate capacity of the entire filtration system is limited to a max flow of 60 Litres Per Minute due to the 20" x 4.5" sized filter housing.

Kit Includes:

  • Twin Whole House Filter System (Pre-Installed Frame)
  • Opening Spanner
  • 2x Pressure Gauges
  • Instruction/Warranty Sheet
  • Your Choice Of Filters (Additional Charges Apply)

Specifications & Technical Data:

  • Frame Dimensions:
    • Height: 87cm
    • Width: 61cm
    • Depth: 22cm
  • Ports/Connection Type:
    • Inlet: 1" BSP Female
    • Outlet: 1" BSP Male OR 3/4" BSP Female
  • Operating Pressure: 20 psi (140 kPa) - 70 psi (500 kPa)
  • Operating Temperature: 1°C - 50°C (protect from freezing temperatures)
  • Max Flow: 60 Ltrs/min (*System tested to 160 Ltrs/min. Maximum flow measured without cartridge. Refer to cartridge specs for flow rates.)
  • Initial ΔP @ Flow: 10 kPa @ 57 Ltrs/min


  • FILTER SIZE - The 20" x 4.5" size of system enables the maximum surface area and contact time for sediment, chemical, taste and odour reduction, and the best possible flow rate to prevent water pressure problems (which can occur by selecting too small a system).  
    This system comes standard with a set of pressure gauges, which is especially useful if you have a lot of sediment in your tank. Pressure gauges help to determine how clogged your filters are, and help you to monitor the performance of your system. Simply mark the level of pressure on the gauge upon installation or when you install a new set of filters - reduced pressure over time indicates filter blockage. 

reduced pressure over time indicates filter blockage

  • FILTER CHANGES AND MAINTENANCE - Lastly, we recommended filter changes on an annual basis, and offer a 12-monthly filter reminder email service to help you remember! Simply email info@filtersystemsaustralia.com.au when you place your order, and ask us to set you up with a filter reminder! Filter changes are easy enough – simply turn off the water going into the system, press down on the pressure relief valves, unscrew the sumps, replace the filters, screw it back up and turn the water back on! You may notice the water feels a bit "slippery" at first after installing new carbon filters, but don't worry - this is normal and will go away quickly once enough water has run through. Also, if the water looks cloudy at first, again - don't stress! This is dissolved oxygen and it will go away quickly once enough water has run through the new filters.

Filter Options

Customise your filter system set up to suit your unique needs. Please read the below for a full breakdown of which filters to choose, and why*.

*Please note - the below recommendations are general information only and may not always suit your requirements. Please call us on 07 5597 4585 prior to purchase if you have any questions about your requirements.

Sediment Filters

  • Choose from pleated (washable) or polyspun (disposable) sediment filters. 
  • 5 Micron is well suited for mains/town treated water and high-quality tank/bore** water, whilst 20 Micron helps improve the flow rate.
  • As sediment cartridges are generally less dense, they cause less pressure drop than carbon block cartridges. If you strictly require a full 105 LPM flow rate, it's possible and sometimes even recommended to place two sediment cartridges in a row, as opposed to the standard combo of sediment + carbon.
  • Please check with us if you wish to use two 20 Micron Cartridges in a row, to ensure whether this particular combination is suitable for your application. 

Tank and bore** water are often contaminated with sticks, leaves, and rock sediment. In some cases, finely dissolved matter can even cause visible discolouration, build-up and staining, along with a foul taste and odour - and even a gritty texture in some rare cases! Installing a sediment filter also helps protect your pipes and carbon filters from getting blocked up with ultra-fine silt, whilst also preventing damage to the glass internals of the UV system.


Pleated (Washable/Reusable) Sediment Filters

Sediment Filters

  • Larger Surface Area Catches More Debris
  • Reusable/Washable
  • Ideal Pre-Filter for Tanks/Bores**

Pleated filters carry a much larger surface area than polyspun filters, and therefore they are able to catch a lot more debris. Simply remove the filter, clean, and re-use! Very popular for tank water when you have a lot of debris like leaves and dirt, particularly after a fresh rain. Pleated filters are also useful for bore water when you have a small amount of iron or manganese present, as pleated filters are easy and quick to clean. The washable pleats on this filter are designed to be washed and reinstalled. However, please consider that if this is drinking water you need to be careful not to overuse a pleated filter, because it will eventually gather bacterial contaminants and incur micro-tears. If the water isn't all that bad you might want to consider using a polyspun disposable filter and replace it when dirty. 

Pleated Filter Options:

  • 5 Micron Pleated Washable Sediment Filter Cartridge

Poly Spun (Polypropylene) Disposable Sediment Filters

Disposable Sediment Filters

  • High Flow & Low Pressure Drop
  • Cost-Effective & Disposable

Poly Spun filters produce a high flow and low pressure drop, and do not accumulate bacteria as much as other materials. They are highly cost-effective and disposable. All of our poly spun filters are made of 100% Virgin Polypropylene. Polyspun filters are manufactured to create a gradient density that allows for excellent sediment-holding capacity and filtration efficiency.

Polyspun Filter Options:

  • 5 Micron Polyspun Sediment Filter Cartridge
  • 20 Micron Polyspun Sediment Filter Cartridge


Pure Brand 100% Coconut Carbon Filters

  • High Quality, 100% Coconut Shell Carbon that Produces "Sweet" Tasting Water
  • Excellent Contaminant Reduction Capacity for Common Chemical Health & Aesthetic issues such as Chlorine, Trihalomethanes, Volatile Organic Compounds, Pesticides, Herbicides, Tastes & Odours.
  • Recommended 12 Month Lifespan if (used on Municipal Treated Water - you may get less if used on particularly dirty/turbid/raw water).
  • Designed for Minimum Impact on Water Pressure

The perfect carbon block filter is made from 100% Coconut Shell Carbon, which creates what many believe to be the sweetest tasting water. The unique pore structure of this carbon is well suited for chemical absorption, including VOC's, while reducing chlorine, chemicals and organic compounds that contribute to taste and odour. Coconut Carbon provides a much higher volume of micropores than coal, wood, or lignite-based carbon, thus, resulting in a more effective removal of chemical contaminants such as trihalomethanes (THMs) in Chlorinated sources. The larger surface area provides a more effective method of filtering common contaminants such as chlorine, tastes and odour molecules. The unique raw material of the coconut shell and the carbon manufacturing process ensures exceptional hardness and low ash content.

Pure Brand's 100% Coconut Carbon Block Filters are made from a combination of high-performance coconut shell carbon, unique binders, and industry-leading manufacturing processes to deliver supreme-quality filtration. Expertly designed and manufactured, these filters deliver exceptionally low-pressure drop, resistance to sediment build-up, and excellent contaminant-reduction capabilities. Pure Carbon Blocks are registered in compliance with NSF/ANSI 42, 53, and 61 for several things, including VOCs, THMs, Lead & Heavy Metal Reduction, Chloramine Reduction & Chlorine Taste & Odour reduction. This also includes meeting incredibly high standards of purity and safety in the materials used.

Please see below for a full comparison of our range of Carbon Filters:

GT4-19CTO - 5 Micron Chlorine Taste & Odour Reduction Coconut Carbon (Budget Option for Improved Chlorine Taste & Odour Reduction in Tank Water)

Odour Reduction Coconut Carbon

  • CTO Carbon is our budget option for chlorine reduction, improved sweet taste, and reduced odour - great value and quality!

Chlorine is generally the biggest concern for those on municipal water or those who use chlorine to disinfect their tanks, due to the offensive chemical smell and taste it produces, along with potential health effects resulting from topical exposure or consumption. Whilst Chlorine is effective at sanitising bacteria and viruses, Volatile Organic Compounds and Disinfection By-Products such as Trihalomethanes (THM) and Chloroform can form when chlorine reacts with oxygen and other chemicals in solution. The Chlorine, Taste, and Odour cartridge will provide you with clean, great-tasting water free from nasty chemicals and remove or reduce any chemical smells in the water caused by free chlorine.

Bore/Tank Water** Filter Combo Example*:

Filter 1: 5 Micron Pleated OR 5 Micron Poly Spun Sediment Filter
Filter 2: 5 Micron CTO Carbon 
Filter 3: Ultraviolet Treatment


GT4-19LPD - 20 Micron Low-Pressure Drop Coconut Carbon (For Effective Carbon Filtration Without Compromising Water Pressure)

20 Micron Low-Pressure Drop Coconut Carbon

  • LPD Carbon is perfect for those with low water pressure concerns. 
  • Use standalone to filter chlorine in low-pressure systems. 

Low water pressure is often referred to as the ‘bane’ of water filtration. Most filtration systems require minimum working pressures exceeding 350kPa to ensure the system functions correctly and won't affect the flow of water pressure to the house. However, many off-grid systems rely on an external pump system and subsequently struggle with low water pressure. The 20uM Low-Pressure Drop Carbon is designed for these conditions. It has been specially manufactured to have a very low density to allow free-flowing water without compromising on chlorine, taste and odour removal. This is achieved by using a special blend of activated coconut carbon of a hydrophilic nature, which allows the carbon to have less contact time whilst removing the comparable levels of chlorine and other chemicals as other coconut carbon filters of this size. 

IMPORTANT - A 5 Micron Pre-Filter MUST accompany the 20 Micron Low Pressure Drop Carbon if intended for Pre-Ultraviolet Sterilization. Carbon as the sole means of filtration is insufficient for treating rain/bore water. Please refer to the note at the bottom of this page: **FILTERING BORE WATER - IMPORTANT INFORMATION BEFORE YOU ORDER**.

Example Filter Combo For Tank/Bore**

Filter 1: 5 Micron Pleated OR 5 Micron Poly Spun Sediment Filter
Filter 2: 20 Micron Low Pressure Drop Carbon Block 
Filter 3: Ultraviolet Treatment


GT4-19BCC - 5 Micron Bacteriostatic (Silver Impregnated) Coconut Carbon Block (For Preventing Filter Biofouling in Raw/Tank/Bore** Water)

Ultraviolet Treatment

  • Ideal for Pre-Filtering tank** & Raw Water Prior to Ultraviolet Treatment.
  • Prevents Bacteria from Proliferating within the Cartridge.
It's important to note that Silver Impregnated Carbon is BACTERIOSTATIC - meaning that it inhibits or prevents the increase or growth of bacterial levels WITHIN the filter only. Silver Impregnated/Bacteriostatic Filters DO NOT sanitise, disinfect or remove bacteria from water. If this is your goal, further treatment is required - please refer to the note at the bottom of this page **FILTERING TANK AND BORE WATER - IMPORTANT INFORMATION BEFORE YOU ORDER**.
Contrary to popular belief, carbon does not filter out bacteria. Whilst carbon effectively removes odours and taste issues from water, carbon ash is actually a source of nourishment for bacteria, making wet carbon filters a breeding ground for microbial contamination (Note: this should not be an issue on mains water as Chlorination is designed to kill bacteria). This, unfortunately, causes biofouling of the filter cartridge which can lead to premature blockage (costing you hundreds of dollars to replace cartridges more frequently than you should have to), putrid tastes and odours and worse - illness as a result of ingesting the bacteria that has passed through the cartridge and into your drinking water! Using a rotten filter can make you seriously sick - so if in doubt - chuck it out!
Silver Impregnated Carbon, on the other hand, is bacteriostatic - meaning that it is proven to inhibit the growth of carbon-fed bacteria within the filter to prevent bio-fouling and prolong the life of a cartridge - even while it is not being used! Therefore, when it comes to filtering raw water, Bacteriostatic (Silver Impregnated) Coconut Carbon is the number one choice, as this media is specifically designed for use with rainwater, tanks and bores* to prevent bacteria from breeding and colonising within the carbon and extending the life of your filter. Silver Impregnated Carbon is ideal for periods of time where the filter may go unused. If you want to get the most out of your carbon filter, you can even go one step further and dry it out between uses! 

So, how does Silver Impregnation inhibit the growth of bacteria in a carbon filter? When bacteria come into contact with silver, the silver ions puncture the bacteria's cell membrane and wreak havoc by binding to and denaturing the bacteria's DNA. The sulphydryl group already within the bacterial cell also reacts with the silver, producing a silver sulphur complex that immobilises the respiratory and reproductive activity of the bacterial cell. Interestingly, Silver Impregnation has an incredibly long-lasting effect, as the dead bacteria then leach the silver molecules back into their environment, effectively killing neighbouring live bacteria as they die.

Dead bacteria store the microscopic silver particles within their cells (see above image of dead bacteria with silver nanoparticles (white spots)), making them deadly to live bacteria.
(Source: "Antibacterial Activity of Silver-Killed Bacteria: The "Zombie" Effect" (2015), https://pubmed.ncbi.nlm.nih.gov/25906433/).


Tank Water/BoreWater** Filter Combo Example* (Only Recommended Over 50 psi/344 kPa Pump Pressure):

Filter 1: 5 Micron Pleated OR 5 Micron Poly Spun Sediment Filter
Filter 3: 0.5 Micron Silver Impregnated Carbon
Filter 3: Ultraviolet Treatment


Bore/Tank Water** Filter Combo Example*:

Filter 1: 5 Micron Pleated OR 5 Micron Poly Spun Sediment Filter
Filter 2: 5 Micron Silver Impregnated Carbon 
Filter 3: Ultraviolet Treatment


GT4-19LRC - 0.5 Micron Lead Reduction Composite Coconut Carbon (For Chlorine Reduction & Heavy Metal Concerns in Rainwater, Old Infrastructure, Cities & Industrial Areas)

0.5 Micron Lead Reduction Composite Coconut Carbon

  • Reduction of Chlorine, Tastes, Odours and Heavy Metals.
  • Ideal for Filtering Tank/Bore Water where atmospheric pollution may be of concern.

On the basis of local and atmospheric contamination, it is not uncommon to have elevated heavy metal levels in rainwater supplies. 

Constant exposure to heavy metals combined with the different chemicals being used to treat our water supplies can have serious health effects, and can also cause severe plumbing problems within our homes. Rainwater (acidic pH) and chlorine/chloramine treated water (basic pH) both tend to be quite corrosive, and this can wreak havoc on the internal plumbing and fixtures within old municipalities and even the copper and brass fixtures in your home (which fittings may contain traces of lead)! The chemical quality of rainwater can also be negatively impacted for those living near heavy industry or in areas with heavy traffic emissions. For example, rainwater samples in Port Pirie, South Australia, (which has one of the world’s largest lead smelters), have been found to contain levels of heavy metals such as lead that exceed Australian Drinking Water Guidelines by up to ten times! (Even bushfire can contaminate rainwater, in which case you'll need to have your tanks cleaned out!)

This cartridge is perfectly suited to reducing trace heavy metals that may be present in your water. The technologically-advanced Lead Reduction Cartridge is impregnated with BASF ATS Lead and Heavy Metals Adsorbent Media, which features a high capacity for the reduction of Lead and other heavy metals such as Arsenic, Chrome, Copper etc., along with the usual benefits of carbon in the reduction of Chlorine, Volatile Organic Compounds, and Trihalomethanes.

Tank Water/BoreWater** Filter Combo Example* (Only Recommended Over 50 psi/344 kPa Pump Pressure):

Filter 1: 5 Micron Pleated OR 5 Micron Poly Spun Sediment Filter
Filter 2: 0.5 Micron Lead Reduction Carbon Block 
Filter 3: Ultraviolet Treatment


GT4-19SMC - 0.5 Micron Surface Modification Coconut Carbon (For Reducing Water Discolouration/Tannin Reduction)

0.5 Micron Surface Modification Coconut Carbon

  • Ideal for Reducing Tannin Discolouration, Chlorine, Tastes & Odours in Tank** & Raw Water.

Surface Modification Carbon uses a unique blend of highly reactive catalytic coconut carbon with the highest performance reduction technology. SMC filters are the best type of cartridges to reduce water discolouration, including rust and most tannins. Surface Modification Filters are commonly referred to as ‘Tannin Removal Filters’. Also filters Chlorine. 

A Note on Treating Tannin:
Tannin removal can be a bit hit and miss - usually carbon will remove most of the tannin, but sometimes it doesn’t. Because of this, we normally recommend doing a small scale “litmus test” with a cheap carbon filter to see if this makes a difference to the colour. If it works, then we can be more certain that you will get a good result with a standard carbon filter, and a great result with this 0.5 Micron SMC Tannin Reduction filter! Please contact us before purchasing this filter if you are unsure about the source of colour in your water, so that we can help you with the right recommendation to get the best result!

Tannin Reduction Filter Combo Example* (For Tank/Bore**) (Recommended Over 50 psi/344 kPa Pump Pressure):

Filter 1: 5 Micron Pleated OR 5 Micron Poly Spun Sediment Filter
Filter 2: 0.5 Micron Tannin Reduction Carbon Block 
Filter 3: Ultraviolet Treatment


Watermark Certified Ultraviolet Sterilisation Water Sanitation System | Whole House High Flow 75-105 Litre Per Minute UV with High Grade 304 Stainless Steel Chamber (H7-90-AT)

Ultraviolet Sterilisation Water Sanitation System 105L/m Whole House UV (H7-90-AT)

Raw rainwater is full of bacteria, parasites, and viruses! Treat it with UV Sanitation - a safe, highly effective, chemical-free, and low-maintenance alternative to Chlorine! Please Note: Even though the UV System that comes with this kit is capable of filtration at 75-105 Litres Per Minute, the flow rate capacity of the entire filtration system is limited to a max flow of 60 Litres Per Minute due to the 20" x 4.5" sized filter housing.

Kit Includes:

  • H7-90-AT - WaterMark Commercial 304 Stainless Steel UV System 48W | 1” Ports
  • H7-90-BRK - 2x Aluminium Mounting Clamps + Screws
  • H7-90-Lamp - 48W High Output UV Lamp, 4 Pin 436mm length
  • H7-90-Thimble - Quartz Thimble 470mm length, 23mm outer diameter
  • GT7-2NSF-OR - 2x O-Rings 23mm outer diameter
  • H7-90-PS - Certified 4 Pin Ballast 42-105W (240V) Australian Plug + Earthing Cable

Specifications & Technical Data:

  • Commercial Grade Electropolished 304 Stainless Steel Chamber
  • Visual & Audible Lamp Failure Alarm
  • 1” BSP Threaded Male Connections & 3/4" BSP Internal Threads
  • Strong Aluminium Mounting Brackets – Surrounds Chamber
  • Max Flow - 105L/Min (For 30mJ/cm² EOL)
  • High Intensity UV Lamp – Max Flow Rate up to 105L/min @ 30mJ/cm² for General Disinfection & 75L/min @ 40mJ/cm² for Drinking Water
  • Lamp Power - 48W
  • Voltage - 110-240V (Power Supply) & 60V (Lamp)
  • Max Pressure - 800 kPa
  • Working Pressure - Up To 70psi
  • Dimensions
    • Length - 500mm (Without Plug)
    • Between Ports - 340mm

Whilst many people enjoy the sweet taste of rainwater, we cannot stress enough that drinking raw, untreated water from a tank is a very bad idea! Scarily, in Australia the general public perception is that rainwater is pure, clean, and safe to drink - but according to the Australian Environmental Health committee’s Guidance of the Use of Rainwater tanks, the fact is that the microbial quality of tank-collected rainwater is typically WORSE than regular urban tap water!

Raw, untreated water contains a microbiologically sickening soup of bacteria, viruses & parasites that inevitably make their way into your tank from disease-spreading insects such as blood-sucking mosquitoes, the excrement and decaying carcasses of frogs, snakes, rodents, and possums that commonly live in and around tanks, and the droppings from bats and birds flying overhead! Also consider that bacteria tend to proliferate in moist and warm environments - meaning that warmer weather, in particular, has the tendency to turn your tank into a putrified bacterial breeding ground. E.Coli, Salmonella, Legionella & P. Aeruginosa are some of the more common pathogenic bacteria found in rainwater tanks, whilst Cryptosporidium and Giardia Cysts are the most common rainwater tank parasites. All of these pathogens are a common cause of Gastro!

What Are the Symptoms of Cryptosporidiosis?Giardiasis : Symptoms, causes, complications, & remedies | FactDr

Cryptosporidiosis & Giardiasis are common causes of gastro illness in humans and animals!
(Image Sources: Shutterstock.com)

Thus, whilst rainwater may smell odourless, taste great, and look clean and clear to the naked eye, with the human senses alone, you simply cannot tell what potentially harmful microscopic contaminants could be lurking in your tank water (even after filtering the water with carbon) – and you certainly don’t want to be drinking it!

UV Water Sanitation is by far the most important filtration process when it comes to rainwater treatment. Ultraviolet sanitation works by breaking down the cell wall of micro-organisms (bacteria, parasites, viruses, fungi & yeast), allowing oxidation to occur which in turn prevents the microbe from multiplying until it is finally eradicated. Ultraviolet filtration is a chemical-free solution to water sanitation, creating no by-products in the water, and is recommended by the Australian Drinking Water Guidelines as a safe, effective and chemical-free water disinfection technique:

A comparison of Drinking Water Disinfection Methods approved for use in Australia under the Australian Drinking Water Guidelines (Version 3.7, 2022))
(Source: NRMMC (2011) Australian Drinking Water Guidelines Paper 6 National Water Quality Management Strategy. National Health and Medical Research Council, National Resource Management Ministerial Council, Commonwealth of Australia, Canberra, pp. 214.)

Water Pre-Treatment Specifications

  • Hardness < 120 mg/L
  • Turbidity < 1.0 NTU
  • Iron < 0.3 mg/L
  • Manganese < 0.05 mg/L
  • Tannins < 0.1 mg/L 
  • Filtration < 5uM Particulate Filtration

Installation Requirements

  • This appliance must be installed directly into a single socket surge protector before being connected to a 240V 10A General Power Outlet (PowerPoint). It must be a surge protector - Circuit Breakers and Residual Current Devices (RCDs) are not suitable substitutes as they do not protect the unit from power surges.
  • Earthing: Before operating this unit, it must be earthed. Simply attach the supplied earthing cable connected to the chamber to an earthing rod.

UV System Maintenence Notes:

Ultraviolet systems are rated based on a dosage level of UV-C radiation into the water (mJ/cm²), with 30mJ/cm² being the standard level of disinfection and a minimum dose of 40mJ/cm² required to comply with the Australian Drinking Water Guidelines. Our lamps are rated with a 9000 hour (1 year) lifespan, after which point the lamp will naturally degrade and the level of radiation produced by the lamp cannot be guaranteed.

The UV lamp sits inside a quartz thimble, which protects the electrical components of the lamp from making contact with the water. We specifically use quartz (fused silica) for this application because it is strong, exhibits thermal resistance, and has excellent UV transmission properties. However, over time, metal ions fused within the silica structure of the quartz thimble interfere with the UV-C radiation produced by the lamp, which reduces the UV transparency of the glass and causes it to become fragile. This process is called solarization. Tannin, bio-film, algae, and scale can also build up on the outside of the glass thimble, further preventing ultraviolet light produced by the lamp from penetrating through the thimble, and impairing the system's ability to sanitise the water passing through. It is recommended to clean the thimble periodically (every 3-6 months with alcohol or a mild detergent.

Thus, we recommend replacing the lamp every 12 months, and the thimble every 1-2 years.

HPF-UV System Replacement Parts:


OPTIONAL (RECOMMENDED) ADD ON: HydroSil Ultra 7.5% | Silver Stabilised Hydrogen Peroxide Water Sanitiser

As UV is a point of use (non-residual) form of water sanitation, we strongly recommend dosing your tank with a product such as Hydrosil Ultra 7.5% Water Sanitiser upon installation of your Whole House UV System, to ensure full protection against bacterial and fungal contamination/biofouling/biofilm build-up in your pipework and/or filter system.

HydroSil is a food-grade silver and hydrogen-peroxide based water sanitiser, which acts to oxidise bacteria and fungi without leaving any dangerous residues behind. HydroSil sanitizes and protects your tanks and filtration devices to help make your tank water safe for human consumption. HydroSil is not a chlorine-based chemical like most sterilizers on the market today. It is non-toxic, and safe to use around your home and family.

Dosage Instructions for the Initial Treatment Immediately Prior to System Installation:

  • HydroSil should be dosed at a rate of 200mL (2L) per 1000L (10KL) of tank water.
  • Turn on every tap in the house until you are satisfied that the treated water has passed through.
  • Immediately install the Whole House System.
  • It is recommended that this dosing procedure should be completed every time the UV lamp is changed.



About Bore Water

Bore water will always require filtration, as whilst you would think it is “naturally purified” to some extent as the water seeps through the aquifer via various layers of bedrock, this water is highly susceptible to contamination by bacteria, viruses, parasites (see: Brain-Eating Parasites), sewerage (think human excrement, cleaning and bathing products), chemicals, fertilisers, pesticides, minerals, heavy metals (such as lead, zinc, chromium, copper, cadmium, arsenic and nickel), and sometimes even radioactive elements (such as uranium) from both natural sources and human activity. As with rainwater treatment, the most cost-effective solution is typically to use 5 Micron Carbon Filtration in combination with UV Sterilisation to ensure 99.9% eradication of all parasites, bacteria, viruses. However, this system is not always a "total fix", as bore water chemistry is incredibly complex, and sometimes may not even be treatable. Yet another common misconception we often encounter is that carbon can filter out anything and everything – but unfortunately, carbon doesn’t kill bacteria or remove minerals, salts and other such dissolved inorganic substances!

We STRONGLY recommend that you get your bore water tested to determine if there are any underlying issues in the water chemistry of your bore, before you make any purchases or try to filter it. If you have not had your water tested yet and would like to get this done, please contact us to have your bore water analysed.

  • Product Description: High Performance | Weather Resistant Twin Filter + UV Whole House Water Sanitation System 
  • Part Number: HPF-UV
  • Dimensions H/W/D (cm): 87/61/22
  • Operating Pressure: 20 psi (140 kPa) - 70 psi (500 kPa)
  • Operating Temperature: 1°C - 50°C (protect from freezing temperatures)
  • Watermark Certified: Yes under Certificate No. 23247
  • Connection Type:
    • Inlet: 1" BSP Female
    • Outlet: 1" BSP Male OR 3/4" BSP Female
  • UV System
    • Dosage + Flow Rates
      • 40mJ/cm² @ 75L/Min
      • 30mJ/cm² @ 105L/Min
      • Earthing: Before operating this unit, it must be earthed. Simply attach the supplied earthing cable connected to the chamber to an earthing rod.
      • UV systems are not designed to be turned on and off. Doing this may shorten your lamp life. Lamps should be changed every year. The lamp may still be working, but after 1 year, the power may not be able to kill all bacteria. The Quartz thimble should be replaced every 2 years. If hardness is high it is recommended to service and clean the UV thimble every 6 months or as required to remove and scale that may build up.
      • Please Note: Even though the UV System that comes with this kit is capable of filtration at 75-105 Litres Per Minute, the flow rate capacity of the entire filtration system is limited to 60 Litres Per Minute due to the 20" x 4.5" sized filter housing.
    • Replacement Parts:
      • H7-90-Lamp - 48W High Output UV Lamp, 4 Pin 436mm length
      • H7-90-Thimble - Quartz Thimble 470mm length, 23mm outer diameter
      • GT7-2NSF-OR - 2x O-Rings 23mm outer diameter
      • H7-90-PS - Certified 4 Pin Ballast 42-105W (240V) Australian Plug + Earthing Cable
  • Cartridges
    • Cartridge Size: 20" x 4.5" (Extra Large)
    • Cartridge Life: 6-12 Months depending on inlet water quality.
  • Warranty
    • See Instruction Manual for Details
  • Pre-Treatment Specs
    • Hardness < 120 mg/L
    • Turbidity < 1.0 NTU
    • Iron < 0.3 mg/L
    • Manganese < 0.05 mg/L
    • Tannins < 0.1 mg/L
    • Filtration < 5uM Particulate Filtration
    • If your water quality parameters do not meet these criteria, please contact us for pre-treatment recommendations.

Return Policy

Due to the nature of the products we sell, a strict return policy is in place. We work with food grade certified materials that must be un-opened and un-used as to be able to be re-sold.

You may receive a refund or credit of equal amount, less the restocking fee if applicable and any other deductions that are relevant.

  • Wrongly purchased items may be returned for a merchandise credit, this applies for but not limited to: Wrong size, wrong system etc.
  • 30 Day return Policy: Returns will not be accepted without prior approval or after 30 days of invoice date.
  • All returns will incur a 17.5% restocking fee or cost to send the item to you whichever greater. FSA may use discretion to determine the restocking fee.
  • Any damages (minor, that can be repaired) will incur a fee which will be deducted from the total refund which will be equal to the cost of the replacement
    parts (List Price) and labour charge (if applicable) to repair the system(s). This will be separate to the restocking fee.
  • Any damage considered to be major and not feasible for repair may be refused and the return request will be void. The customer will be responsible for the return freight or disposal of the damaged unit.
  • Return shipping is to be paid by the buyer to the address provided. It is recommended that the customer applies transit warranty to the return freight in case of damage.
  • Any damages to the system that were not reported to FSA within 48 business hours of receipted delivery are not covered under our transit warranty.

  • Should the item appear faulty or doesn’t work how described, the unit/item must be returned for testing (if requested), the return postage paid by the buyer. If the unit/item is deemed to be faulty, compensation will be provided for the postage cost (Proof of cost required). If the unit/item is deemed to be in working order and as described, the buyer will responsible for return postage.

If you have any questions about our return policy, please contact us before purchase. This will also help to ensure you purchase the correct product that suits your requirements.