20" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Black Installing the plaster frame is

Installing the plaster frame is effortless – secure it into your sheetrock

actual front end outer dimensions are approximately 38 5/8" width X 36 5/8" height

+ Product Details Size - 12"w X 12"h X 2"d (for duct opening measurement only)

+ Product Details Size - 36"w X 24"h is the size for the duct opening measurement only

20" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Black Installing the plaster frame is+ Product Details Size 20"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 875" width X 8" 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