Description
Actual Size: 20 x 25.5 x 4.38. Accumulair brand, 20x26x5 Lennox PCO20-28 substitute whole house filters, exactly engineered to substitute for the original brand Lennox PCO20-28 air filters. Fully built - no assembly or combs needed. MERV classified to ASHRAE 52.2 test ratings establishing particulate filtration equal to the OEM Lennox PCO20-28 filter. Notice: The example filter image as shown is not to scale and is there to show design purposes only. Trade names and Lennox PCO20-28 P/N are shown for air filter replacement identification.