36" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling White actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

actual front end outer dimensions are approximately 30 5/8" width X 20 5/8" height

+ Product Details Size - 14"w X 12"h is the size for the duct opening measurement only

75" width X 11

+ Product Details Size – 25"w X 20"h is the size for the duct opening measurement only

during winter

36" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER HVAC Vent Duct Cover Sidewall or Ceiling White actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG A 1212 actual front end outer dimensions are approximately 30 5 8" width X 20 5 8" height + Product Details Size 14"w X 12"h is the size for the duct opening measurement only