20" X 18" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 10in diameter Whether you're restoring an old 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
20" X 18" ADJUSTABLE AIR SUPPLY DIFFUSER HVAC Vent Duct Cover Sidewall or Ceiling 10in diameter Whether you're restoring an old 4 X 12 Is CRFG2028 Width_14in Whether you're restoring an old Victorian or craftsman style home + Product Details Size – 20"w X 34"h is the size for the duct opening measurement only