30" X 30" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 32 5/8" X 32 5/8"] w18h18 + Product Details Size -

+ Product Details Size - 22"w X 28"h is the size for the duct opening measurement only

Design – removable door/face for easy filter change & cleaning - uses a 1" thick filter

75" width X 21

Each grille is securely shrink-wrapped with a cardboard backing to prevent damage during shipment

+ Product Details Size - 32"w X 4"h is the size for the duct opening measurement only

30" X 30" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 32 5/8" X 32 5/8"] w18h18 + Product Details Size -+ Product Details Size 30"w X 30"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 32 5 8" width X 32 5 8" height High Quality high quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location sidewall and ceiling Design removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on