Description
Actual dimensions are 19.13 x 19.88 x 4.25. Accumulair brand 19x20x4.25 Totaline FILBBFNC0021 substitute whole house air filters, exactly designed to replace original manufacturer Totaline FILBBFNC0021 air filters. Fully box-formed so no assembly or combs needed. MERV classified to ASHRAE 52.2 test classifications assuring particle capture as good or better than the OEM Totaline FILBBFNC0021 filters. Note: Sample filter image shown is not the actual dimensions and is there to show configuration purposes. Brand names and Totaline FILBBFNC0021 P/N are shown for filter substitution identification use.