25" X 24" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 27 5/8" X 26 5/8"] Color_Red Oak Wood + Product Details Size - RG2230 HP w4h4 const modal document

+ Product Details Size - 36"w X 12"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 18 5/8" width X 14 5/8" height -

actual front end outer dimensions are approximately 27 5/8" width X 34 5/8" height -

+ Product Details Size - 25"w X 34"h is the size for the duct opening measurement only

Actual Filter Size – 24 3/4"w x 15 3/4" x 1"

25" X 24" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 27 5 8" X 26 5 8"] Color_Red Oak Wood + Product Details Size RG2230 HP w4h4 const modal document + Product Details Size 36"w X 12"h is the size for the duct opening measurement only actual front end outer dimensions are approximately 18 5 8" width X 14 5 8" height