12" X 30" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 14 5/8" X 32 5/8"] w8h8 + Product Details Size –

+ Product Details Size – 50"w X 20"h is the size for the duct opening measurement only

+ Product Details Size – 6" x 12" or 12" x 6" is the size for the duct opening measurement only

while the ingenious dial-controlled damper empowers you to effortlessly regulate airflow using your foot

+ Product Details Size - 36"w X 30"h is the size for the duct opening measurement only

12" X 30" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 14 5/8" X 32 5/8"] w8h8 + Product Details Size –+ Product Details Size 12"w X 30"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 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 Ceiling Design Fixed hinged for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on your fingers and