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Licenced WaterMark Supplier
WaterMark Triple Undersink Water Filter System Housing 10" x 2.5" with 1/4" Ports (GT1-38)
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Triple 10" x 2.5" housings on steel bracket
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Includes housing spanner and push-fit fittings
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WaterMark Certified to AS 3497:2021
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Filters, tap, and install kit sold separately
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Ideal for custom 3-stage filtration setups
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Compatible with standard 10" x 2.5" cartridges
The GT1-38 Triple Undersink Filter Housing Kit is designed for users building a custom 3-stage filtration system, suitable for both mains and rainwater applications. With three standard 10" x 2.5" housings mounted to a durable bracket, this setup provides flexibility to combine sediment, carbon, or specialty filters tailored to your needs.
Supplied as a bare housing kit, this model includes the housings, bracket, push-fit connectors, and opening spanner — ready for integration into your own plumbing configuration. Filters, tap, tubing, and valves must be selected separately based on your specific setup.
⚠️ Filter Compliance Notice:
Under AS 3497:2021, only cartridges that are tested and compliant with applicable safety and performance standards (e.g. NSF/ANSI 42 or 53) should be used with WaterMark certified housings. Use of non-compliant filters may void certification and compromise water safety.
Kit Contains
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3 × 10" x 2.5" WaterMark Certified Filter Housings
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1 × White Powder-Coated Steel Mounting Bracket
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1 × Housing Opening Spanner
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2x 1/4" Push-fit Connectors
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Filters, tap, and installation fittings not included
WaterMark Certification
This system is WaterMark Certified to AS 3497:2021 under Certificate Number 23247, ensuring suitability for installation by licensed plumbers in Australia.
Certification covers housing strength, pressure integrity, and material safety, and confirms that the system is compliant with applicable plumbing codes when installed with approved cartridges and components.
Installation Note:
Installation must be completed by a licensed plumber. Filters, faucet, and connection hardware to be selected separately.
| Specification | Details |
|---|---|
| System Dimensions | 36 × 37 × 13 cm (H × W × D) |
| Micron Rating | N/A – Filters not included |
| Filter Media | Compatible with standard 10" x 2.5" cartridges |
| Ports | 1/4" |
| Fittings | 1/4" Push-Fit |
| Max Flow Rate | Dependent on selected filters |
| Compatible Water Types | Mains / Town Water / Rainwater |
| Installation | Undersink (Bracket Mount) |
| Standards | AS 3497, AS 4020, AS 3707 |
| Certifications | WaterMark Certified |
| Maximum Pressure | 500 kPa (PLV recommended for pressure control) |
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.