Description
Actual dimensions are 19.75 x 19.88 x 4.38. Accumulair brand, 20x20x5 Honeywell F50F1040 compatible whole house filters, exactly engineered to replace original brand Honeywell F50F1040 filters. Completely built with no forming or combs needed. MERV classified to ASHRAE 52.2 test classifications ensuring particulate filtration as good or better than the original manufacturer Honeywell F50F1040 air filters. Note: The sample air filter image as displayed is not true to size and is displayed for configuration only. Name brands and Honeywell F50F1040 P/N are listed for air filter replacement identification use.