30" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Aluminum - Cube Core + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 20" duct opening (measured at the opening)

+ Product Details Size – 25"w X 34"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 24 5/8" width X 24 5/8" height

+ Product Details Size - 14"w X 14"h X 2"d (for duct opening measurement only)

+ Product Details Size – 30"w X 10"h is the size for the duct opening measurement only

30" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Aluminum - Cube Core + Product Details Perfect Fit+ Product Details Size 30"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 875" width X 12" 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