Description
Actual dimensions are 19.56 x 22 x 5.25. Accumulair brand, 20x22x5 Janitrol GMAC-M compatible whole house filters, exactly engineered to substitute for the original manufacturer Janitrol GMAC-M air filters. Fully built so no forming or combs needed. MERV classified to ASHRAE 52.2 test specs establishing particulate capture as good or better than the OEM Janitrol GMAC-M air filter. Photo: Example filter picture as shown is not to scale and is displayed for design only. OEM names and Janitrol GMAC-M part numbers included for filter substitution identification purposes only.