Champion CHWS Series Replacement Cartridge - 50 and 100 CFM Spin-On Oil/Water Media

Genuine Champion spin-on replacement cartridges for the 50 and 100 CFM CHWS Series oil/water separator. These carry the enhanced alumina silicate substrate media bed that holds the compressor lubricant and lets treated water pass to drain at less than 10 ppm.

Select your cartridge from the dropdown above.

Cartridge Selection Chart

These cartridges fit the 50 and 100 CFM CHWS units, which use the spin-on design. The larger CHWS-250 uses a use up and replace molecular sieve strategy instead and does not take these cartridges.

Spin-On, Spin-Off Service

The whole point of the small CHWS design is that a media change takes a minute and no tools. Spin the spent cartridge off, spin the new one on, and the unit is back in service. There is no bed to scoop out, no carbon to vacuum and no drip pan to manage. The spent cartridge goes out through your normal waste management service.

When to Change It

Change on your facility's schedule rather than waiting for a visible symptom. An adsorption cartridge that has reached capacity does not usually announce itself: the discharge simply starts carrying hydrocarbon again. The practical approach is to draw a sample from the outlet periodically, compare it against clean tap water, and set an interval from what you observe. A shop running high carryover, an oversized compressor into an undersized unit, or a humid summer will get through cartridges faster than the label interval suggests.

The two cartridges are not interchangeable, and the larger one will not extend a smaller unit's capacity. Changing one does not require stopping the compressor: isolate the drain lines feeding the unit, spin the cartridge off and the new one on, then reopen. Note also that the current Champion air treatment price list prices these two cartridges but only the CHWS-250 as a complete unit, so call us for availability on the 50 and 100 CFM complete units, or ask about the equivalent CH7 and Intelli-PAK options. We stock the CHWS-250 and the full oil/water separator range if the unit itself is due for replacement rather than the media.

Technical Specifications

Ideal Applications

Any facility already running a CHWS-50 or CHWS-100 separator: small machine shops, automotive and truck service bays, dental and laboratory air, print shops and light manufacturing under a municipal pretreatment permit. Keep a spare on the shelf if a failed discharge sample would be a reportable event.