18" X 34" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 20 5/8" X 36 5/8"] Floor Grille our grill boasts an impressive

our grill boasts an impressive 96% airflow capacity

#hvac-product-accordion { border: 2px solid #5296DD

actual front end outer dimensions are approximately 16 5/8" width X 26 5/8" height

actual front end outer dimensions are approximately 26 5/8" width X 38 5/8" height -

18" X 34" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 20 5/8" X 36 5/8"] Floor Grille our grill boasts an impressive+ 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.