14"W X 14"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 15.75"W X 15.75"H] Filter Grille margin-right: 12px Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

margin-right: 12px

+ Product Details Size - 26"w X 26"h is the size for the duct opening measurement only

+ Product Details Size - 14"w X 10"h is the size for the duct opening measurement only

+ Product Details Size - 32"w X 28"h is the size for the duct opening measurement only

+ Product Details Size - 10"w X 18"h is the size for the duct opening measurement only

14"W X 14"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 15.75"W X 15.75"H] Filter Grille margin right: 12px Compatible With Duct 7in Applications This sheet metal DDAG A 1212 margin right: 12px + Product Details Size 26"w X 26"h is the size for the duct opening measurement only