Lennox Healthy Climate PureAir PCO-20C MERV 16 replacement filter is 21"x26"x4". The X6669 fits the larger PCO-20C PureAir unit.
The Lennox Healthy Climate PureAir replacement filter uses a MERV 16 pleated filter to capture extremely small airborne particles. In most home environments, this filter only needs to be replaced every 6 months.
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Click Here for the Lennox PureAir Product Brochure
Click Here for the Lennox PureAir Homeowner Manual
Click Here for Detailed Installation Instructions
Click Here for Lennox PureAir Product Engineering Data Sheet |