Plastic Filter Housings for Water Treatment & Industrial Use

Our extensive range of cost-effective, high-quality single cartridge plastic filter housings suit a wide range of industrial, commercial, and residential applications which require the use of depth filters, pleated depth filters, carbon filters or membrane filters.

Our housings are available in standard 10" & 20" lengths accommodating a wide variety of filter formats, including larger diameter Big Blue filters. The standard opaque housings are moulded from FDA-compliant polypropylene with broad chemical compatibility, which includes acids, alcohols, oils, plating solutions, and other common process chemicals. A high temperature housing options to 93^oC are also available. The standard housings use a knife-edge sealing surface securely locating crush-fit double open end (DOE) filter cartridges. Applications requiring sub 1 micron particulate removal, housings also accept filters with internal 213 O-rings minimizing the risk of bypass.

What is a plastic filter housing?

A plastic filter housing is a pressure-rated casing, typically made from materials like polypropylene, PTFE or PVC, that holds filter cartridges or bags. It directs the fluid through the filter media, allowing for the removal of contaminants from liquids in a wide range of applications.

What are the advantages of using plastic filter housings over metal ones?

Plastic housings are corrosion-resistant, lightweight, and generally more affordable than stainless steel alternatives. They’re also chemically compatible with many aggressive fluids, making them ideal for certain chemical processing or water treatment systems.

In which industries are plastic filter housings commonly used?

They’re widely used in:

Water treatment
Food and beverage processing
Chemical manufacturing
Pharmaceuticals
Aquaculture and agriculture

Their chemical compatibility and resistance to corrosion make them suitable for a variety of applications.

What materials are commonly used in plastic filter housings?

Typical materials include:

Polypropylene (PP) – Cost-effective, chemical resistant
PVC – Good for corrosive, low-pressure applications
PTFE - Excellent chemical compatibility, but higher cost
PVDF – High temperature and high-purity use
Nylon – Strong with good temperature tolerance

How do I choose the right plastic filter housing for my application?

Consider fluid type, temperature, system pressure, flow rate, and the size/type of the filter element. It’s also important to check chemical compatibility and ensure the connection ports match your existing pipework.

What sizes are available for plastic filter housings?

Most plastic housings accommodate standard cartridge lengths (5", 10", or 20") with diameters of 2.5" (standard) or 4.5" (Big Blue). Choose size based on your flow rate and desired filter capacity.

Can plastic filter housings handle high-temperature fluids?

It depends on the material:

Polypropylene – Up to ~90°C
PVDF – Up to ~150°C
Nylon – Up to ~120°C

Always refer to the manufacturer’s temperature ratings for safe operation, but also remember that as the temperature increases the maximum operating pressure will be reduced.

Are plastic filter housings suitable for high-pressure systems?

Most are rated up to around 6 bar (87 psi), but this varies by material and wall thickness. For high-pressure applications, stainless steel filter housings are usually a better choice.

How do I maintain and clean a plastic filter housing?

Clean with compatible fluids (avoid aggressive solvents unless the housing is rated for them)
Check and replace O-rings or gaskets as needed
Reassemble carefully to prevent leaks or cross-threading

Are clear plastic housings available, and what are the benefits?

Yes — clear housings (often made from SAN or polycarbonate) allow visual inspection of the filter element, which helps monitor clogging or fouling. However, they usually have lower pressure and temperature ratings than opaque alternatives.