Amazon.com: Lennox X6672 16x25x5 Furnace Filter, Lennox Healthy Climate Carbon Clean Merv 16 Home Air filter for HVAC system with Wholesalehome Cleaning Cloth : Everything Else
Amazon.com: X6675 20x25x5 MERV 16 Filter Compatible with Lennox X6675 Healthy Climate Carbon Clean Merv 16 Home Furnace Filter for HVAC System, Part Number HCF20-16, (Actual Size: 19.8 x 24.8 x 4.3