10" X 10" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 12 5/8"] Round To Oval Straight Boot it includes an internal RFI

it includes an internal RFI filter to reduce interference

actual front end outer dimensions are approximately 31 5/8" width X 24 5/8" height -

Experience uniform air distribution in every corner

actual front end outer dimensions are approximately 20 5/8" width X 22 5/8" height -

+ Product Description Introducing our 20" x 24" or 24" x 20" Floor Grille - a reliable and durable air grill designed for exceptional performance and built to last

10" X 10" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 12 5/8"] Round To Oval Straight Boot it includes an internal RFI+ Product Details Size 10"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 12 5 8" width X 12 5 8" height Actual Filter Size 9 3 4"w x 9 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. Our