36"W X 18"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 37.75"W X 19.75"H] w22h22 display === 'none') { dd Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

display === 'none') { dd

+ Product Details Size - 10"w X 22"h is the size for the duct opening measurement only

85" width X 9

+ Product Details Size - 14"w X 16"h is the size for the duct opening measurement only

+ Product Details Size – 16"w X 20"h is the size for the duct opening measurement only

36"W X 18"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 37.75"W X 19.75"H] w22h22 display === 'none') { dd Compatible With Duct 7in Applications This sheet metal DDAG A 1212 display === 'none') { dd + Product Details Size 10"w X 22"h is the size for the duct opening measurement only