24" X 24" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 26 5/8" X 26 5/8"] Insulated Line Set + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size – 20"w X 30"h is the size for the duct opening measurement only

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

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

+ Product Details Size – 20"w X 36"h is the size for the duct opening measurement only

Refrigerant - 1/2" White Insulation - 50' Long

24" X 24" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 26 5 8" X 26 5 8"] Insulated Line Set + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 20"w X 30"h is the size for the duct opening measurement only + Product Details Size – 36"w X 12"h is the size for the duct opening measurement only