20" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 10in diameter Measure the size of the

Measure the size of the vent opening

+ Product Details Size – 32"w X 16"h is the size for the duct opening measurement only

Operating temperature from -40°f to +248°f [-40°c to +120°c]

For 14" duct opening

+ Product Details Size - 22"w X 18"h is the size for the duct opening measurement only

20" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 10in diameter Measure the size of the+ Product Details Size 20"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 875" width X 6" 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