20" Large Diameter - 3 Stage Housing 1" BSP Ports - Ready Assembled

3-Stage Whole House Water Filter System – 20” x 4.5” Housings with 1” Ports

Upgrade your water filtration with this pre-assembled 3-stage water filter system, designed for whole house and high-flow applications. Built with durable polypropylene housings and 1” BSP connections, this system accommodates three 20” x 4.5” DOE cartridges, providing a flexible and effective multi-stage filtration setup.

Perfect for removing sediment, chlorine, organics, or fine particles, this system offers a spatially efficient and economical solution tailored to various levels of filtration requirements.

✅ Key Features:

• Pre-Assembled for Quick Installation – Save time and cost with a ready-to-use system

• Triple Cartridge Configuration – Accepts three 20” x 4.5” cartridges (sold separately)

• Durable Polypropylene Housings – High strength and chemical resistance

• 1” BSP Port Connections – Compatible with standard plumbing setups

• Includes Pressure Gauges – Monitor cartridge condition and maximise service life

• Includes Spanner Tool – For easy sump removal during maintenance

• Buna-N Seals – Provide excellent sealing under pressure

• Max Flow Rate: 50 LPM

• Max Pressure: 6.9 bar | Temperature Rating: 40°C

🛠 Modular Filtration System – Tailored for Your Needs

• Single Stage: Ideal for bulk solids, sand, and sediment

• Two Stage: Use pre-filtration to protect finer or more expensive cartridges

• Three Stage (This System): Best for full filtration cascades – sediment → carbon → specialist treatment (e.g., scale, taste, heavy metals)

Use this 3-stage configuration for a comprehensive solution across residential, agricultural, industrial, or commercial applications.

❓ Frequently Asked Questions (FAQs)

Q: What cartridges fit this system?
A: It uses DOE (Double Open Ended) 20” x 4.5” cartridges, including sediment, carbon block, and specialist filters.

Q: Can I install this system myself?
A: Yes – the unit comes fully pre-assembled with 1” ports for easy plumbing. A spanner is included for maintenance.

Q: What is the flow rate of this system?
A: It supports up to 50 litres per minute (LPM), ideal for whole house filtration or light commercial use.

Q: What do the pressure gauges do?
A: They allow you to monitor the pressure drop across the system, helping you know when to replace filters and extend cartridge life.