18" X 16" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling sidewall Check Out This Asin For

Check Out This Asin For Matching T-Bar Drop-Ceiling Grille: B007CNEJZK

+ Product Details Size – 18"w X 36"h is the size for the duct opening measurement only

+ Product Details Size - 32"w X 4"h is the size for the duct opening measurement only

positioning supply and return grills accordingly

18" X 16" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling sidewall Check Out This Asin For+ Product Details Size 18"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 875" width X 18" 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