Actual dimensions are 19.75 x 19.88 x 4.38. Accumulair brand 20x20x5 Honeywell F50E1182 substitute whole house filters, specifically built to substitute for the original brand Honeywell F50E1182 air filters. Completely built so no forming or combs needed. MERV graded to ASHRAE 52.2 test classifications assuring performance as good or better than the original brand Honeywell F50E1182 filters. Note: The sample air filter picture shown is not to scale and is displayed for design only. OEM names and Honeywell F50E1182 part numbers shown for filter substitution purposes only.
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