10" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Return actual front end outer dimensions

actual front end outer dimensions are approximately 28 5/8" width X 14 5/8" height

while the ingenious dial-controlled damper empowers you to effortlessly regulate airflow using your foot

[Outer Dimensions: 12

16"w X 3"h Is The Size For The Duct Opening Measurement Only

+ Product Details Size - 20"w X 22"h is the size for the duct opening measurement only

10" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Return actual front end outer dimensions+ Product Details Size 10"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 875" width X 10" height. High Quality High quality steel construction, no scuff powder coat durable finish, smooth, shiny, scratch resistant, no sharp edges, 2 recessed screw holes on each side with screws included, screws same color as vent cover, easy installation. Adjustable airflow control Adjustable airflow