20-Inch Big Blue Water Filter Housing with DBL O-ring, Bracket, Air Release & Spanner | 1” & 1½” Port Options | Eco & Premium Ranges

The 20-Inch Big Blue Water Filter Housing is a robust, high-capacity housing designed for a wide range of residential, commercial, and agricultural water filtration systems. Available in both Eco and Premium ranges, this housing offers excellent value and performance for use with sediment, carbon, and speciality filter cartridges.

Each housing includes double O-ring seals for enhanced leak resistance, an integrated air release valve for pressure relief, and a durable epoxy-coated steel bracket for secure wall-mounting. A housing spanner and stainless steel bracket screws are also included for hassle-free setup.

Choose between:

• Eco Range – 1" Ports

• Premium Range – 1" or 1½" Ports

Both options are built to high manufacturing standards and carry the same reliability and warranty coverage, with the Premium Range offering a slightly more refined material finish for extended durability under higher loads.

Available Options (Variants):

• 20-Inch Big Blue Filter Housing – Eco Range – 1” Ports

• 20-Inch Big Blue Filter Housing – Premium Range – 1” Ports

• 20-Inch Big Blue Filter Housing – Premium Range – 1½” Ports

All variants include the bracket, housing spanner, air release valve, and mounting screws (bracket to housing only).

Key Features

• Double O-Ring Seal – Ensures tight and secure closure, reducing risk of leaks.

• Air Release Valve – Easily releases trapped air after filter replacement or initial installation.

• Epoxy-Coated Steel Bracket – Rust-resistant and built to last, included with stainless steel screws.

• Universal Fit – Compatible with all 20” x 4.5” Big Blue cartridges (sold separately).

• Housing Spanner Included – Simplifies opening and maintenance.

• Eco & Premium Options – Both ranges offer excellent value; the Premium version features a higher-grade construction material for enhanced longevity.

Technical Specifications (All Variants)

• Housing Size: 20” x 4.5” (Big Blue Standard)

• Inlet/Outlet Sizes:

  • Eco Range: 1” BSP Female

  • Premium Range: 1” or 1½” BSP Female

• Material: Reinforced polypropylene (Premium with higher-grade finish)

• Seal Type: Dual EPDM O-rings

• Pressure Relief: Integrated air release valve (manual)

• Max Pressure: 6 bar

• Max Temperature: 45°C

• Colour: Blue housing, black cap

• Bracket: Epoxy-coated steel with stainless steel screws to housing

• Wall Screws: Not included

What You Get

• 1 x 20” Big Blue Water Filter Housing

• 1 x Built-in Air Release Valve

• 1 x Epoxy-Coated Mounting Bracket

• 1 x Housing Spanner

• 4 x Stainless Steel Screws (to mount bracket to housing)

Applications

• Whole-house water filtration systems

• Rainwater tank filtering setups

• Borehole and well water filtration

• Reverse osmosis pre-treatment

• Agricultural and commercial systems

Important Notes

• Wall mounting screws are not included – please use stainless steel anchors suited to your wall surface.

• Ensure the housing is depressurised before cartridge replacement.

• Use with appropriate rated cartridges (sediment, carbon block, GAC, KDF, etc.) based on your water quality.