22" X 6" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 24 5/8" X 8 5/8"] Aluminum - Cube Core + Product Details Perfect Fit Suitable for all AC 8in diameter 12125SDCLNGBX

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 16" duct opening (measured at the opening)

+ Product Details Size – 25"w X 10"h is the size for the duct opening measurement only

+ Product Details Size – 34"w X 18"h is the size for the duct opening measurement only

ensuring optimal circulation throughout your space

22" X 6" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 24 5 8" X 8 5 8"] Aluminum Cube Core + Product Details Perfect Fit Suitable for all AC 8in diameter 12125SDCLNGBX + Product Details Perfect Fit & Easy Sizing Designed for a 16" x 16" duct opening (measured at the opening) + Product Details Size – 25"w X 10"h is the size for the duct opening measurement only