Description
Actual Dimensions: 19.75 x 20.75 x 4.88. Accumulair brand, 20x20x5 Ultravation 91-013 substitute whole house air filters, exactly constructed to be an alternative to the name brand Ultravation 91-013 air filters. Completely assembled with no forming or combs needed. MERV rated to ASHRAE 52.2 test grades establishing particle capture equal to the OEM Ultravation 91-013 filter. Note: The example air filter picture shown is not to scale and is included to show construction only. OEM names and Ultravation 91-013 P/N shown for filter substitution identification.