12" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Floor Grille + Product Details Size -

+ Product Details Size - 6"w X 10"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 10 5/8" width X 18 5/8" height

positioning supply and return grills accordingly

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

actual front end outer dimensions are approximately 30 5/8" width X 10 5/8" height

12" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Floor Grille + Product Details Size -+ Product Details Size 12"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 875" width X 14" 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