Description
Actual Dimensions: 19.75 x 20.75 x 4.88. Accumulair brand: 20x20x5 Ultravation 91-013 compatible whole house air filters, specifically engineered to replace the original brand Ultravation 91-013 filters. Fully built - no assembly or combs needed. MERV rated to ASHRAE 52.2 test standards ensuring particulate filtration to the level of the original brand Ultravation 91-013 filters. Photo: The example air filter image shown is not true to size and is there to show configuration purposes only. Trade names and Ultravation 91-013 identifier are shown for filter substitution identification purposes.