Description
Actual Dimensions: 20.75 x 20.63 x 5. Brand: Accumulair. 20x21x5 Electro-Air F8110321 compatible whole house air filters, exactly designed to be an alternative to the original brand Electro-Air F8110321 air filters. Fully built so no forming or combs required. MERV graded to ASHRAE classifications ensuring filtration as good or better than the name brand Electro-Air F8110321 air filters. Photo: The sample filter pic displayed is not true to size and is included to show configuration purposes only. Company names and Electro-Air F8110321 part numbers used for air filter style identification use.