Description
Actual dimensions are 21.25 x 27.25 x 4.38. Accumulair brand 21.5x27.5x5 Honeywell FC100A1045 replacement whole house air filters, specifically built to be an alternative to the original brand Honeywell FC100A1045 filters. Completely built - no assembly or combs needed. MERV graded to ASHRAE 52.2 test classifications establishing performance as good or better than the name brand Honeywell FC100A1045 air filter. Photo: Sample air filter picture as shown is not to scale and is displayed for style purposes. Name brands and Honeywell FC100A1045 P/N are shown for filter replacement identification purposes.