30" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Insulated Line Design – These are specially 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
Design – These are specially sized to fit into all drop ceilings
the T-Bar vent covers
5"w X 12"h]
and centralized air ducted units
Actual Filter Size – 7 3/4"w x 19 3/4" x 1"
30" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Insulated Line Design – These are specially 4 X 12 Is CRFG2028 Width_14in Design – These are specially sized to fit into all drop ceilings the T Bar vent covers