30" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Return + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size – 12"w X 22"h is the size for the duct opening measurement only

+ Product Details Size - 14"w X 12"h is the size for the duct opening measurement only

75" Width X 23

+ Product Details Size – 24"w X 14"h is the size for the duct opening measurement only

actual front end outer dimensions are 13" Width X 13" Height

30" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Return + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 12"w X 22"h is the size for the duct opening measurement only + Product Details Size 14"w X 12"h is the size for the duct opening measurement only