• X8788 MERV 16 Furnace Filter Replacement Compatible with Lennox X8788 and Pureair PCO20-28 Cleaner, 20x26x5, Black, 1 Pack KWD 48.500
• X7935 Furnace Air Filter Replacement Compatible with Lennox X7935 Filter Model HCC14-23 and Honeywell Filter Models FC100A101 And FC200E1011, 20"x20"x5" MERV 16 Filter, 1 Pack KWD 47.500
• 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 In), 2 Pack KWD 41