Description
Actual dimensions are 20 x 25.5 x 4.38. Accumulair brand, 20x26x5 Lennox PCO20-28 compatible whole house filters, exactly engineered to substitute for the original brand Lennox PCO20-28 air filters. Fully built so no assembly or combs needed. MERV classified to ASHRAE specs assuring performance equal to the original brand Lennox PCO20-28 filter. Notice: Sample filter picture as shown is not the actual dimensions and is shown for design purposes. Brand names and Lennox PCO20-28 P/N are included for air filter substitution identification purposes only.