The Lennox X6669 Healthy Climate PureAir replacement filter uses a MERV 16 pleated filter to capture extremely small airborne particles. Dimensions: 21" x 26" x 4" In most home environments, this filter only needs to be replaced every 6 months. The PCO-20C Healthy Climate PureAir Air Purification System requires that you change the UVA Lamps and the Filter every year.
- Filter dimensions: 21"x26"x4"
- Actual size 20 3/4" x 25 3/4" x 3 3/4"
- Fits the PCO-20C PureAir unit
- Uses a MERV 16 pleated filter to capture extremely small airborne particles
- This filter only needs to be replaced every 6 months
- Genuine Lennox OEM Furnace Filter