28" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 30 5/8" X 14 5/8"] Fixed Blades with Damper ensuring compatibility with most thermostat

ensuring compatibility with most thermostat models

+ Product Details Size - 34"w X 22"h is the size for the duct opening measurement only

Full Control – Full 190 degrees control of air direction vertically & horizontally

actual front end outer dimensions are approximately 10 5/8" width X 26 5/8" height

+ Product Details Size – 14"w X 12"h is the size for the duct opening measurement only

28" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 30 5/8" X 14 5/8"] Fixed Blades with Damper ensuring compatibility with most thermostat+ Product Details Size 28"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 30 5 8" width X 14 5 8" height Actual Filter Size 27 3 4"w x 11 3 4" x 1" 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.