Description
Actual Dimensions: 20.25 x 25.38 x 5.25. Accumulair brand, 20x25x5 Nordyne 918378 compatible whole house air filters, exactly engineered to substitute for the name brand Nordyne 918378 air filters. Completely box-formed so no forming or combs required. MERV graded to ASHRAE 52.2 test standards ensuring particulate filtration as good or better than the original manufacturer Nordyne 918378 air filter. Notice: Sample filter picture as shown is not to scale and is there to show style only. Company names and Nordyne 918378 P/N shown for air filter style identification purposes only.