The Water Company supplies reverse osmosis (RO) membrane housings for domestic, commercial and industrial water purification systems. These housings securely contain RO membrane elements and provide the connections required for feed water, purified permeate and concentrate flow.

Our range includes compact housings for domestic water purifiers and robust FRP (fibreglass-reinforced plastic) housings for commercial and industrial RO plants. Different sizes, port configurations and membrane capacities are available to suit a variety of system designs and installation requirements.

The Water Company supplies reverse osmosis (RO) membrane housings for domestic, commercial and industrial water purification systems. These housings securely contain RO membrane elements and provide the connections required for feed water, purified permeate and concentrate flow.

Our range includes compact housings for domestic water purifiers and robust FRP (fibreglass-reinforced plastic) housings for commercial and industrial RO plants. Different sizes, port configurations and membrane capacities are available to suit a variety of system designs and installation requirements.

Types of RO membrane housings available:

1812 Membrane Housings: Compact housings designed for compatible domestic reverse osmosis membrane elements.

3012/3013 Membrane Housings: Housings for compatible membrane sizes used in selected water purification systems.

4021 FRP Membrane Housings: Options for compatible commercial RO systems using 4021 membrane elements.

4040 FRP Membrane Housings: Designed for standard 4-inch × 40-inch membrane elements used in commercial and industrial water purification plants.

Multi-Element 4040 Housings: Available in configurations accommodating two, three or four 4040 membrane elements in one housing.

Different Port Configurations: Selected housings feature end ports, same-side ports or opposite-side ports to accommodate different piping layouts.

How to choose the correct membrane housing:

Selecting the correct housing is essential for safe operation and reliable system performance. Before ordering, consider:

Membrane size: Match the housing to the exact membrane element size, such as 1812, 3012, 3013, 4021 or 4040.

Number of membrane elements: Confirm whether the housing accommodates one, two, three or four elements.

Port configuration: Choose end-port, same-side-port or opposite-side-port arrangements according to the system’s piping layout.

Material: Select a housing material suitable for the water chemistry, operating conditions and intended application.

Pressure rating: Confirm the manufacturer’s maximum allowable operating pressure and ensure it is suitable for the system’s design pressure.

Connections and fittings: Check the port sizes, thread types, end caps, seals and other required accessories.

Installation space: Confirm the housing dimensions and allow sufficient room for servicing and membrane replacement.

Important installation and maintenance considerations:

Membrane housings operate under pressure and must be installed in accordance with the manufacturer’s instructions. Never exceed the specified pressure or temperature limits. Check seals, fittings and connections during maintenance, and depressurise the system fully before opening a housing or removing a membrane.

A membrane housing must be compatible with the selected membrane and the system’s operating conditions. Do not assume that housings with similar dimensions have identical pressure ratings, connections or internal arrangements.

Why choose The Water Company?

The Water Company supplies RO membrane housings, membrane elements, filter cartridges, FRP pressure vessels, filter media, dosing equipment and other components for water purification systems.

Whether you are replacing a domestic membrane housing or building a commercial or industrial RO plant, browse our Membrane Housings category to find a suitable option for your installation.