24" X 34" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 26 5/8" X 36 5/8"] Color_Aluminum + Product Details Size – 6in diameter LO3236 Easily adjust dimensions with

+ Product Details Size – 36"w X 18"h is the size for the duct opening measurement only

+ Product Details Size - 8"w X 28"h is the size for the duct opening measurement only

this model ensures top-notch air quality

actual front end outer dimensions are approximately 16 5/8" width X 14 5/8" height

24" X 34" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 26 5 8" X 36 5 8"] Color_Aluminum + Product Details Size – 6in diameter LO3236 Easily adjust dimensions with + Product Details Size – 36"w X 18"h is the size for the duct opening measurement only + Product Details Size 8"w X 28"h is the size for the duct opening measurement only