Davey Microlene 20" Jumbo Whole House Filter Housing – W20J25MM with Filter Options for Rainwater or Mains Water – WaterMark Approved

The Davey W20J25MM is a rugged 20" Jumbo filter housing built for large whole-house water filtration systems. With 1" BSP inlet/outlet ports, reinforced polypropylene construction, and a built-in pressure relief valve, it's designed to handle high sediment loads and large flow demands. Choose the housing on its own or with cartridge options tailored for rainwater or mains supply.

Dropdown Options:

Housing Only
No cartridges included. Ready to be paired with your preferred 20" Jumbo filters.

Rainwater Kit – W20J25MM + 20PP20J (20 micron pleated cartridge)
Perfect for sediment-heavy rain or tank water. The reusable pleated cartridge provides excellent flow and dirt holding, ideal as a first stage for whole-home rainwater systems.

Mains Water Kit – W20J25MM + ACB20J (5 micron carbon block)
Suited for mains water supply. This carbon block cartridge reduces chlorine, odours and fine sediment, improving water quality for the entire home.

Features:

• WaterMark approved housing – WMTS-103 (Lic. 032114)

• Large capacity 20" Jumbo size with 1" BSP inlet/outlet

• Built-in pressure relief valve for easy servicing

• Includes mounting bracket, screws and housing spanner

• Compatible with all standard 4.5" dia. Jumbo cartridges

Ideal For:
Whole-house systems, lifestyle blocks, rainwater filtration setups, and town supply improvement for larger homes.

Data Sheet