WaterMark Triple Undersink Water Filter System Housing 10" x 2.5" with 1/4" Ports (GT1-38)

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

• 3 × 10" x 2.5" WaterMark Certified Filter Housings

• 1 × White Powder-Coated Steel Mounting Bracket

• 1 × Housing Opening Spanner

• 2x 1/4" Push-fit Connectors

• 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.