32" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 34 5/8" X 14 5/8"] Powder-Coat actual front end outer dimensions 4" Round Duct Pipe Product Details Size The SHEASC10W1-HP

actual front end outer dimensions are approximately 14 5/8" width X 12 5/8" height

+ Product Details Size - 20"w X 25"h is the size for the duct opening measurement only

+ Product Details Size – 36"w X 22"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 30 5/8" width X 16 5/8" height -

Actual Filter Size – 23 3/4"w x 19 3/4" x 1"

32" X 12" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 34 5 8" X 14 5 8"] Powder Coat actual front end outer dimensions 4" Round Duct Pipe Product Details Size The SHEASC10W1 HP actual front end outer dimensions are approximately 14 5 8" width X 12 5 8" height + Product Details Size 20"w X 25"h is the size for the duct opening measurement only