36" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Outdoor Vent Covers Crafted with a solid steel

Crafted with a solid steel body

+ Product Details Size - 4"w X 22"h is the size for the duct opening measurement only

Its linear bar design maximizes ventilation

order a 20x14 grille

+ Product Details Size - 25"w X 8"h is the size for the duct opening measurement only

36" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Outdoor Vent Covers Crafted with a solid steel+ Product Details Size 36"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 37. 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