FREE SHIPPING AUSTRALIA WIDE
Free shipping on all retail orders
AUSTRALIAN OWNED & OPERATED
Licenced WaterMark Supplier
Chloramine & Chlorine Reduction Twin Undersink Water Filter System | Catalytic Carbon for Mains Water (GT1-46WM)
-
Dual carbon block filtration for advanced chemical reduction
-
Targets chlorine, chloramine, VOCs, and chemical byproducts
-
Includes 20µm low pressure drop carbon + 0.5µm catalytic carbon
-
WaterMark Certified with full fitting kit
-
Chrome modern-style faucet tap included
-
Ideal for mains water with chloramine or chlorine.
Chloramine & Chlorine Reduction Twin Undersink Water Filter System (GT1-46WM)
This Twin Undersink Water Filter System is purpose-built to provide maximum reduction of chlorine, chloramine, and related chemical byproducts commonly found in Australian mains water supplies. Featuring dual carbon filters selected for performance and flow balance, it delivers high-grade filtration with minimal impact on pressure — making it ideal for households that want chemical protection without the cost or bulk of an RO system.
The system includes a 20 micron low pressure drop carbon block filter, followed by a 0.5 micron catalytic coconut carbon cartridge, both manufactured by High Performance Filtration (HPF). Together, they work to reduce disinfectants and improve taste, odour, and chemical safety at the tap.
Compact and professionally assembled, the system is designed for easy installation under any kitchen sink. All components are WaterMark compliant and suited for licensed plumber installation, offering long-term reliability and consistently clean, great-tasting water.
Filter 1: Low Pressure Drop Carbon Block – 20 Micron LPD2510-20 (GT4-6LPD)
This specially formulated 20µm carbon block provides an ideal balance of surface area and flow, acting as a coarse carbon pre-filter for chemical reduction without restricting pressure. It captures larger organic compounds, chlorine, and odour while protecting the finer catalytic carbon filter that follows.
Its structure allows for high flow rates and excellent longevity in mains water systems — particularly where pressure is a concern or multiple outlets are fed from the same line.
Filter 2: Catalytic Coconut Carbon Block – 0.5 Micron CRC2510-P5 (GT4-6CRC)
The second stage features a 0.5 micron catalytic carbon block, designed to remove more stubborn disinfectants like chloramine — a compound increasingly used in municipal water supplies due to its stability and resistance to standard filtration.
Made from activated catalytic coconut shell carbon, this filter is engineered for high adsorption of chloramine, chlorine, and volatile organic compounds (VOCs). It also improves taste and odour while maintaining structure and flow integrity under standard domestic pressure.
Kit Contains
-
2 × 10" x 2.5" WaterMark Certified Filter Housings (GT8-14)
-
1 × 20 Micron Carbon Block Filter GT4-6LPD
-
1 × 0.5 Micron Catalytic Coconut Carbon Filter GT4-6CRC
-
1 × White Powder-Coated Steel Mounting Bracket
-
1 × Modern Chrome Faucet Tap (GT9-2S)
-
1 × WaterMark Approved Pressure Limiting Valve (350 kPa)
-
1 × Leak Shut-Off Valve
-
1 × Feed Water Valve
-
Tubing, Push-Fit Connectors & Housing Spanner
-
Comprehensive Installation Instructions
-
Optional Tap Upgrade: 3-Way Mixer Tap (charges apply)
WaterMark Certification
This system is WaterMark Certified to AS 3497:2021 under Certificate Number 23247, meeting the legal requirements for installation by licensed plumbers in Australia.
WaterMark certification ensures that every component meets strict Australian plumbing standards, covering pressure, structural integrity, and material safety. Each system is assembled in Australia and batch-tested for ongoing reliability and performance. Both cartridges are manufactured from materials compliant with NSF/ANSI 42.
⚠️ Uncertified systems may pose health risks and risk invalidating insurance coverage under Australian plumbing regulations.
Installation Note:
Installation must be completed by a licensed plumber. Detailed instructions are included for a straightforward install.
| Specification | Details |
|---|---|
| System Dimensions | 36 × 24 × 13 cm (H × W × D) |
| Micron Rating | 20 Micron (LPD Carbon) + 0.5 Micron (Catalytic Carbon) |
| Filter Media | Coconut Carbon + Catalytic Coconut Carbon |
| Ports | 1/4" |
| Fittings | 1/4" Push-Fit |
| Max Flow Rate | 3 L/min* |
| Compatible Water Types | Mains / Town Water |
| Installation | Undersink (Bracket Mount) |
| Standards | AS 3497, AS 4020, AS 3707 |
| Certifications | WaterMark Certified, NSF/ANSI 42 Compliant |
| Maximum Pressure | 500 kPa (PLV Limited to 350 kPa) |
| VOC Reduction | >95% (Tested to NSF/ANSI 53 – WQA) |
| Chlorine Reduction | Up to 108,200 L (13,200 L + 95,000 L combined capacity) |
| Chloramine Reduction | ~3,800 L (Estimated 4,200–4,600 L with pre-carbon stage) |
| Typical Pressure Drop | ~36.2 kPa @ 3.8 L/min** |
*Flow rate will vary based on inlet pressure, water temperature, and filter condition.
**Combined system pressure drop estimated from manufacturer data:
1.25 psid @ 7.5 L/min (LPD) + 4.0 psid @ 3.8 L/min (CRC)
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.