8" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Powder-Coated actual front end outer dimensions 18" Round Duct Pipe Fixed 45 horizontal blades LO1810

actual front end outer dimensions are approximately 24 5/8" width X 27 5/8" height

actual front end outer dimensions are approximately 26 5/8" width X 10 5/8" height -

These are specially sized to fit into all drop ceilings

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

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

8" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER HVAC Vent Duct Cover Sidewall or Ceiling Powder Coated actual front end outer dimensions 18" Round Duct Pipe Fixed 45 horizontal blades LO1810 actual front end outer dimensions are approximately 24 5 8" width X 27 5 8" height actual front end outer dimensions are approximately 26 5 8" width X 10 5 8" height