24"W X 8"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 25.75"W X 9.75"H] Powder-Coat + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 36"w X 6"h is the size for the duct opening measurement only

1/4" - 6518 PSI

+ Product Details Size - 12"w X 28"h is the size for the duct opening measurement only

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 4

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

24"W X 8"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 25.75"W X 9.75"H] Powder Coat + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 36"w X 6"h is the size for the duct opening measurement only 1 4" 6518 PSI