30" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included * [Outer Dimensions: 32 5/8" X 22 5/8"] with filter Energy Efficient – Air-tight inner

Energy Efficient – Air-tight inner core decreases the pressure loss and provides a more hygienic environment - high energy efficient / No fiberglass erosion into air stream

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This grille is ideal for both sidewall and ceiling installations

+ Product Details Size - 34"w X 28"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 28 5/8" width X 24 5/8" height

30" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included * [Outer Dimensions: 32 5/8" X 22 5/8"] with filter Energy Efficient – Air-tight inner+ Product Details Size 30"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 32 5 8" width X 22 5 8" height Actual Filter Size 29 3 4"w x 19 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.