22" X 28" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 24 5/8" X 30 5/8"] w18h18 + Product Details Size – 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
22" X 28" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 24 5 8" X 30 5 8"] w18h18 + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 20"w X 34"h is the size for the duct opening measurement only Ring Base Design – Allows for easy installation without removing the thermostat