12" X 32" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 34 5/8"] w20h20 + Product Details Size – SV2414 HP Product Details Perfect Fit 12" Round Duct Pipe

+ Product Details Size – 10" x 14" or 14" x 10" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 38 5/8" width X 22 5/8" height -

rust-free aluminum construction with smooth finished edges and counter-sunk screw holes (screws included)

Actual Filter Size – 23 3/4"w x 9 3/4" x 1"

+ Product Details Size - 32"w X 26"h is the size for the duct opening measurement only

12" X 32" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 14 5 8" X 34 5 8"] w20h20 + Product Details Size – SV2414 HP Product Details Perfect Fit 12" Round Duct Pipe + Product Details Size – 10" x 14" or 14" x 10" is the size for the duct opening measurement only actual front end outer dimensions are approximately 38 5 8" width X 22 5 8" height