The Water Company supplies water filter housings for domestic, commercial, agricultural and industrial water filtration systems. Filter housings securely contain compatible filter cartridges or filter bags, directing water through the filtration element to help remove suspended particles and other impurities, depending on the cartridge selected.
Our range includes standard slimline housings, larger Big Blue housings, multi-stage filter assemblies and whole-house filtration units. With different sizes, connection options and configurations available, you can select a housing to suit your water supply, required flow rate and filtration application.
Choosing the correct filter housing:
Selecting the correct housing is essential for effective filtration and reliable operation. Before ordering, consider the following:
Housing size: Check whether you need a 10-inch or 20-inch standard housing, a Big Blue housing or a bag filter housing.
Connection size: Confirm the inlet and outlet sizes match your pipework and required flow rate.
Cartridge compatibility: Check the cartridge length, diameter, end configuration and intended filtration function.
Operating pressure: Ensure the housing is suitable for the maximum pressure and temperature of your application.
Water demand: Larger housings may offer greater dirt-holding capacity, but the actual flow rate depends on the cartridge, water pressure and system design.
Installation space: Allow enough room to remove the housing sump and replace the cartridge.
Application: Select the appropriate cartridge for sediment, chlorine, taste, odour or another specific treatment requirement.
A filter housing does not normally perform the filtration by itself; the cartridge or filter element inside it determines the primary filtration function. For example, a PP sediment cartridge captures suspended particles, while an activated carbon cartridge is commonly used to reduce chlorine and improve taste and odour.
For borehole water with concerns such as iron, manganese, hardness or microbiological contamination, a cartridge housing alone may not provide the required treatment. Water analysis can help determine the appropriate filtration and treatment stages.
Why choose The Water Company?
The Water Company supplies water purification equipment, filter cartridges and filtration components for domestic, commercial, hospitality and industrial applications. We can help you select a compatible housing and cartridge combination for your water treatment requirements.
Browse our Filter Housings category to find a suitable option for your home, business or water treatment installation.
Showing all 15 results
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3 Stage 20″ BB on frame (excluding cartridges)
R2.412.59 Add to cart -

3 Stage 20″ BB on frame (including cartridges)
R3.041.30 Add to cart -

Cartridge filter housing – 2.5″ x 10″ – 3/4″ in/out – dbl o-ring – blue
R149.54 Add to cart -

Cartridge filter housing, 10″, 1/2″ in/out sgl o-ring, blue
R161.13 Add to cart -

Cartridge filter housing, 2.5″x10″, 1/4″ in/out, dbl o-ring, clear
R159.97 Add to cart -

Cartridge filter housing, 2.5″x10″, 1/4″ in/out, dbl o-ring, white
R143.74 Add to cart -

Cartridge filter housing, 2.5″x10″, 3/4″ in/out, dbl o-ring, clear
R155.53 Add to cart -

Cartridge filter housing, 2.5″x10″, 3/4″ in/out, dbl o-ring, white
R134.11 Add to cart -

Cartridge filter housing, 2.5″x20″, 3/4″ in/out, blue
R321.10 Add to cart -

Cartridge filter housing, 2.5″x20″, 3/4″ in/out, clear
R453.25 Add to cart -

Cartridge filter housing, 4.5” x 10”, 1” in / out, blue
R427.74 Add to cart -

Cartridge filter housing, 4.5” x 10”, 1” in / out, clear
R476.43 Add to cart -

Cartridge filter housing, 4.5” x 20”, 1” in / out, blue, Dbl O-ring
R693.20 Add to cart -

Cartridge filter housing, 4.5” x 20”, 1” in / out, blue, sgl o-ring
R693.20 Add to cart -

Whole house 3 stage with 30W UV light
R4.559.52 Add to cart
