Secure, Sterile, Sustainable
Haffmans CPM® is Pentair’s microfiltration solution designed to safeguard food and beverage production by filtering gases, liquids, and steam (CO2, O2, H20).
CPM filters help ensure your processes remain free of particles and/or free of microorganisms, supporting quality, safety, and efficiency across brewing, beverage, and industrial applications.
Benefits
- Robust design: Stainless steel segmented elements ensure long-lasting durability.
- Quick maintenance: Cost-effective filter membranes are easy to replace, minimizing downtime.
- Lower costs: Reduced inventory and waste cut both expenses and environmental impact.
- Sustainable: Only the membrane is replaced, reducing material waste.
- CIP-compatible: Clean-in-place design eliminates the need for disassembly.
CPM Filter Options
Pre-Filters, type PVF
The woven stainless steel threads assure that the pre-filter provides up to 100 percent particle-free filtration for compressed air, carbon dioxide, and other gases.
Sterile Filters, type PSF
Sterile filter membranes have an absolute retention rate of at least 10-5. The pore size of the membrane is 3, and can deliver up to 100 percent contamination-free air and gas filtration.
Steam Filters, type PDF
Available in a variety of pore sizes, the steam filter provides up to 100 percent particle-free filtration.
Liquid Filters, type PFF
Liquid filters provide up to 100 percent particle-free filtration of water and can be steam sterilized in situ up to 392 degrees Fahrenheit.

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Pre-Filter - Haffmans CPM - PVF
Filters made with woven stainless steel threads ensure 100% particle-free gas filtration.
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Steam Filter - Haffmans CPM - PDF
Available in various pore sizes, the steam filter ensures 100 % particle-free filtration of air and gases.
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CPM Filter Tester - Haffmans MK-3
Enables easy testing of CPM sterile filter elements and most conventional filter cartridges, with the added benefit of in-line testing capability.
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Sterile Filter - Haffmans CPM - PSF
Filters with a revolutionary design offer clear advantages over conventional cartridges, ensuring 100 % contamination-free air and gas filtration.
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Liquid Filter - Haffmans CPM - PFF
Liquid filters ensure 100 % particle-free filtration of liquids - typically water - and can be steam-sterilized in situ at temperatures up to 392 °F / 200 °C.