Whole House Water Filter System Heavy Duty Dual O-Ring 10" x 4.5" (1-7HD)

Product Code: GT1-7HD

Availability: In Stock Ships In 1 Day!

Availability: In stock

Regular Price: $260.00

Special Price $230.00


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Regular Price: $260.00

Special Price $230.00



WaterMark Certified Kit

This Water Filter Kit is certified to WaterMark Standards AS/NZS 3497 Under the Certificate number 23247. WaterMark certification is the level of certification required by law for a licensed plumber in Australia to install a water filter system.

All products used under this certification will give you peace of mind knowing that your water filter complies with Australian plumbing codes.

Our WaterMark certified filter systems are hand assembled here in Australia and are randomly batch tested to ensure top quality and workmanship for your water filtration products.

NEW Heavy Duty Design Housings

'Not your average, everyday Big Blue'

These housings are a US Patented Design that Uses a Dual O-Ring Configuration to provide the best seal. The housings have an outstanding extra 10mm Of heavy Duty thread compared to the traditional "Big Blue" Range of filter housings.
The housings are compliant to NSF/ANSI 42 so you can be assured that you are buying the best quality systems that money can buy.

This filter is designed for Whole House Filtration Up to 45L/Min. Commonly Used as a Filter for Whole House for smaller homes or Utility usage to Laundry as a pre filter.

Kit Includes

  • Twin Whole House Filter System (Pre Installed Bracket)
  • Opening Spanner
  • 2x 1/4" Pressure Gauge Hole Plugs
  • Instruction/Warranty Sheet
  • Your Choice Of Filters

Lifetime Warranty - Our Guarantee

This System comes with FSA's Lifetime Warranty*. Buy with peace of mind knowing that you have got the best quality filtration system you can purchase in Australia.

5 Micron Big Blue Sediment Filter 10" x 4.5"

This poly spun type filter is suitable for all waters, bore tank, dam, creek etc. Poly spun filters are a disposable filter with a large surface area to give long life between changes.

If you have plenty of loose particles, leaves, dirt iron, etc you should consider a washable pleated cartridge. This Poly spun filters is suited to relatively clean water for extraction of fines, and commonly used in front of a carbon filter.

Polyspun Sediment Cartridges are constructed from polypropylene which is spun and melted simultaneously. This technique means there is no centre core to restrict filter performance. The "FSA" series of sediment filters are compatible with most liquids and are highly effective for sediment, rust, sand, silt, and algae removal.  "FSA" performance sediment filters have no chemical residuals. They are extremely high performing, and carry a heavy load of sediment before requiring replacement.

We choose to use these sediment filters over all other types due:

* high performance
* high flow rate
* high load capacity
* The inability to grow bacterial slim

These filters are IDEAL for:
* tank water filtration
* pre carbon filtration
* 'All of House' filtration


Filter Options

Polypropylene Spun Sediment Filter - Compliant to NSF/ANSI 42

Poly Spun is the best type of filtration you can get. They do not accumulate bacteria as much as other materials, as well as being high flow and low pressure drop. Effective in all applications. 5 micron is a reasonably fine filtration and would be suited on high quality bore water or town water or in front of RO's.

100% Virgin Polypropylene material - Compatible for Our Watermark Certified Systems

Purefer Polypropylene filters are made using a unique single nozzle manufacturing process, where a single nozzle blows melted polypropylene onto a spinning 5 micron filter core. As more Polypropylene is blown, the filter diameter gradually widens and the outer density of the filter decreases.

This unique manufacturing process gives Purefer filters a true Gradient Density that allows for a greater dirt holding capacity and higher filtration efficiency compared to standard melt blown filters made from multiple nozzle blowers.

Pleated Washable Sediment Filters

Pleated filters carry a much larger surface area, therefore they are able to catch a lot more debris Simply remove filter clean and re-use!  

Very popular for tank water when you have a lot of debris like leaves, dirt or similar particularly after fresh rain. 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 over use a pleated filter because it will eventually gather bacterial contaminates and become smelly over time. 
If the water isn't all that bad you might want to consider using a polyspun disposable filter and replace when dirty. This is also useful for bore water when you have a small amount of iron or manganese bacteria as it is easy and quick to clean.

Pure 100% Coconut Carbon Block Water Filters

These filters are rolled to our specifications by Thailand Manufacturers that have been in the industry for more than 30 years. This is TRADE QUALITY 100% COCONUT CARBON. These are the same manufacturers that supply Europe and the US.

Very popular, will fit and suit all 10" x 4.5" Big Blue Housings regardless of brand or colour. This high quality 100% Coconut Carbon filter is the exact filter we use as our front line carbon filter.

As a rule it is difficult to find 100% coconut carbon filters. Most lower priced filters on the market are a blend of coconut carbon and coal based carbon. The problem with coal based carbon is that it has a shorter life and often results in a less palatable flavor.

We use this 100% coconut carbon filter in all of our pre-assembled kits. These are top of the range HIGH QUALITY coconut carbon block filters are ideal for taste and odour issues, and perfect for total extraction of town water chemicals. 

TOP OF THE RANGE 100% coconut carbon, this particular filter is currently supplied throughout the European market as a premium drinking water filter. As the exclusive importer to Australia, we are in a prime position to offer you this high quality filter at rock bottom prices, direct from importer to the public.

The perfect carbon block filter is made from 100% Coconut Shell Carbon, which creates what many believe to be sweetest tasting water. The unique pore structure of this carbon is well suited for chemical absorption, including VOC’s, while reducing chlorine and chemicals that contribute to taste and odour.

0.5 Micron Pure Coconut Carbon Filters

These filters are made with the same high grade Coconut Carbon as our standard range of carbon blocks. These blocks are infused with further additives and different composite materials for specific filtration requirements.

The GT4-13PS5 / 05 (Silver Carbon) Are impregnated with silver ions.

Filtration Process

When a cell of bacteria is absorbed into the carbon's structure, it comes into contact with silver ions. The sulphurhydryl group already within the bacterial cell reacts with the silver, producing a silver sulphur complex.  The complex immobilises the respiratory activity of the bacterial cell by preventing the transfer of hydrogen and an oxidative reaction. The cell cannot reproduce and dies, reducing the risk of gastro illness by ingesting bacteria. 


Several factors need to be considered when recommending silver impregnated carbon for use in bacteriostatic filters. Coconut Carbon is rated to be one of the best base materials used in today's market. Coconut Carbon provides a much higher volume of micropores than coal, wood or lignite based carbon. Thus, resulting in a more effective removal of trihalomethanes (THM's) from municipal water supplies. The larger surface area provides a more effective method of filtering common contaminates such as chlorine and chloramines. The unique raw material of the coconut shell and the carbon manufacturing process ensures exceptional hardness and low ash content.



System Dimensions (Not including Fittings)

Height (To Top Bracket): 45cm
Width: 43cm
Depth: 20cm

Housing Size: 10" x 4.5"
Ports: 1" BSP
Max Flow: 60L/Min *
Max Pressure: 80psi
Tested Pressure: 325psi

Max flow may be lower depending on what cartridges are used


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 will receive a credit of equal amount, less the postage cost to send it to you. 

  • 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: We will accept returns up to 30 days after the initial purchase, all orders should be checked immediately for damage/fault upon arrival to aid us with the return process.
  • Return shipping is to be paid by the buyer to the address provided
  • 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. If the unit/item is deemed to be in working order and as described, the buyer will need to pay 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.


Additional Information

Product CodeGT1-7HD
Product TypeWater Filter

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