Description
Actual dimensions are 20.25 x 25.38 x 5.25. Accumulair brand: 20x25x5 Nordyne 918378 compatible whole house air filters, specifically constructed to substitute for the OEM Nordyne 918378 air filters. Completely assembled so no assembly or combs needed. MERV classified to ASHRAE 52.2 test standards ensuring filtration equal to the original manufacturer Nordyne 918378 filters. Note: Sample filter picture as shown is not true to size and is shown for design purposes. Brand names and Nordyne 918378 identifier displayed for filter substitution identification purposes.