Our HC10 filters remove up to 85% of particles such as dust, dirt, and mold spores down to 3 microns and have no ozone emissions— a known lung irritant.
**NOTICE** Lennox is converting their MERV 10 filters to MERV 11. The same part #'s will be used.
Filter and Pressure Rating
OEM for the following units: Lennox PCO-20C
Name Brand: Lennox x6667 Lennox x6669
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