A replacement RO membrane housing with 1/4″ quick-connect (push-fit) ports — fits standard 1812 and 2012 membranes from 36 to 150 GPD. Tool-free tubing connection, compatible with countertop and under-sink RO systems.

What it is

This white RO membrane housing holds a standard 1812 or 2012 reverse osmosis membrane (both sizes fit — this is standard across MWC systems). It connects to your system via 1/4″ quick-connect (push-fit) ports on each end — just push standard 1/4″ OD tubing in for a secure, tool-free connection.

Use it as a direct replacement for a cracked, discolored, or leaking membrane housing in a countertop or under-sink RO system. The threaded cap design allows easy membrane service while the quick-connect ports make reconnection fast and leak-resistant. Membrane not included.

Key benefits

• ✓Fits 1812 & 2012 membranes — 36 to 250 GPD
• ✓1/4″ quick-connect ports — push-fit, tool-free tubing connection
• ✓White finish — clean appearance, matches most RO systems
• ✓Countertop & under-sink compatible — works in both system types
• ✓Durable construction for long-term, leak-free service
• ✓Automatic quantity discounts starting at 2 units

Specifications

Compatibility

Often used with

Good to know before you buy

• Confirm your system uses 1/4″ quick-connect tubing (not threaded ports). If your system has threaded 1/8″ ports, you need the threaded housing instead.
• Push 1/4″ OD tubing firmly into each quick-connect port until it seats. Give the tube a gentle tug to confirm it’s held. No tape or sealant needed.
• Check for leaks after installation before putting the system into service.
• The white finish is standard across most RO systems. If your housing is exposed to direct light, consider the black opaque housing which blocks light and reduces algae growth.
• Membrane not included. This is the housing only. Order your membrane separately from our RO Membranes section.