Honeywell Furnace Air Filter Replacement FC40R1177 - ( 24 x 30 )
YOU HAVE TWO CHOICES FOR SUPER CLEAN AIR.
1..SEAL-TIGHT Honeywell grille replacement filter is 3 3/4" deep and features a gasket to prevent air by-pass.
2..The original aftermarket Honeywell grille replacement filter is 4 3/8" deep but does not have a gasket. Please scroll all the way down to see the original aftermarket filters.
NOTE: Honeywell brand grille filters are only 3 inches deep.