18" X 34" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 20 5/8" X 36 5/8"] Powder Coated Actual Filter Size – 27

Actual Filter Size – 27 3/4"w x 5 3/4" x 1"

please note that the total outer dimensions of the grille measure 8" in diameter

+ Product Description Introducing HVAC Premium's Aluminum Adjustable Return Grill – the key to enhanced air control and energy efficiency

actual front end outer dimensions are approximately 22 5/8" width X 34 5/8" height -

+ Product Details Size - 20"w X 32"h is the size for the duct opening measurement only

18" X 34" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 20 5/8" X 36 5/8"] Powder Coated Actual Filter Size – 27+ Product Details Size 18"w X 34"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 20 5 8" width X 36 5 8" height Actual Filter Size 17 3 4"w x 33 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.