The 20-Inch Big Blue Water Filter Housing (Premium Range) is a robust, heavy-duty housing designed to accommodate high-capacity cartridges for whole-house, commercial, or light industrial water filtration systems. This model features a 1-inch BSP port and a double O-ring sealing system, offering enhanced durability and leak prevention.

Constructed from high-grade polypropylene with a superior finish, the premium housing ensures long-term reliability under continuous use. It fits all 20” x 4.5” Big Blue filter cartridges including sediment, carbon block, GAC, and specialty media types.

Note: This listing is for the housing body and cap only. No bracket, spanner, or mounting hardware is included.

Key Features

• Heavy-Duty Construction – Reinforced premium-grade polypropylene for strength and chemical resistance

• Double O-Ring Seal – Enhanced leak protection and a more secure fit

• 1-Inch BSP Female Port – Suitable for most residential and light commercial plumbing setups

• Universal Cartridge Fit – Accepts all standard 20” x 4.5” Big Blue filter cartridges

• Premium Range – Manufactured with upgraded materials for improved finish and longevity

Technical Specifications

• Housing Type: Big Blue – 20” x 4.5”

• Port Size: 1” BSP Female

• Material: High-grade reinforced polypropylene (Premium)

• Seal Type: Dual EPDM O-rings

• Pressure Rating: Max 6 bar

• Temperature Rating: Max 45°C

• Cap Colour: Black

• Housing Colour: Blue

• Bracket/Spanner: Not included

Applications

• Whole-house filtration systems

• Rainwater harvesting setups

• Borehole and well water treatment

• Pre-filtration for reverse osmosis

• Commercial and agricultural water systems

What’s Included

• 1 x 20” Big Blue Water Filter Housing (Premium Range)
  (Cap + Filter sump only – bracket, spanner & screws sold separately)

Important Notes

• Use only with pressure-rated plumbing components.

• Depressurise system before opening the housing.

• Ensure O-rings are maintained and replaced as needed to prevent leaks.

• For complete installation, consider adding a bracket, spanner, and mounting screws.