Actual Size: 15.88 x 19.75 x 4.38. Accumulair brand 16x20x5 Honeywell F25F1075 style whole house filters, specifically engineered to substitute for the original brand Honeywell F25F1075 air filters. Completely constructed - no forming or combs required. MERV graded to ASHRAE classifications ensuring particulate capture to the level of the original manufacturer Honeywell F25F1075 filter. Note: Example air filter pic as shown is not the actual dimensions and is shown for design purposes only. Brand names and Honeywell F25F1075 P/N are used for air filter replacement identification.