16"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 17.75"W X 17.75"H] Black + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size – 14" x 20" or 20" x 14" is the size for the duct opening measurement only

+ Product Details Size - 24"w X 36"h is the size for the duct opening measurement only

75" height

+ Product Details Size - 20"w X 32"h is the size for the duct opening measurement only

Available in both standard and custom sizes

16"W X 16"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 17.75"W X 17.75"H] Black + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 14" x 20" or 20" x 14" is the size for the duct opening measurement only + Product Details Size 24"w X 36"h is the size for the duct opening measurement only