Actual size is 20.25 x 25.38 x 5.25. Accumulair brand 20x25x5 Nordyne 9183970 style whole house filters, exactly engineered to substitute for the name brand Nordyne 9183970 filters. Completely assembled - no forming or combs needed. MERV graded to ASHRAE specifications ensuring performance as good or better than the name brand Nordyne 9183970 filter. Photo: The sample air filter image as displayed is not the actual dimensions and is there to show configuration only. Name brands and Nordyne 9183970 identifier are included for air filter substitution purposes.
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