20" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w26h26 + Product Details Size –

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

actual front end outer dimensions are approximately 12 5/8" width X 10 5/8" height

actual front end outer dimensions are approximately 20 5/8" width X 18 5/8" height

providing a perfect fit for most standard thermostats

+ Product Details Size - 24"w X 18"h X 2"d (for duct opening measurement only)

20" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w26h26 + Product Details Size –+ Product Details Size 20"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 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