Actual dimensions are 15.88 x 19.75 x 4.38. Brand: Accumulair. 16x20x5 Honeywell F100A1003 compatible whole house filters, specifically engineered to be an alternative to the OEM Honeywell F100A1003 air filters. Completely box-formed with no forming or combs required. MERV graded to ASHRAE standards establishing function as good or better than the OEM Honeywell F100A1003 filter. Note: Example air filter image shown is not to scale and is there to show design purposes. OEM names and Honeywell F100A1003 part numbers included for filter substitution identification purposes.
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