18" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling flat stamped steel which the interior PET provides Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

which the interior PET provides

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

actual front end outer dimensions are approximately 22 5/8" width X 24 5/8" height

Horizontal blades in the front

+ Product Details Size - 32"w X 8"h is the size for the duct opening measurement only

18" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER HVAC Vent Duct Cover Sidewall or Ceiling flat stamped steel which the interior PET provides Compatible With Duct 7in Applications This sheet metal DDAG A 1212 which the interior PET provides + Product Details Size 14"w X 16"h is the size for the duct opening measurement only