30" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Grilles + Product Details Size –

+ Product Details Size – 6" x 24" or 24" x 6" is the size for the duct opening measurement only

+ Product Details Size – 8"w X 6"h is the size for the duct opening measurement only

+ Product Details Size – 40"w X 20"h is the size for the duct opening measurement only

Can be hooked up with our Butterfly Dampersfor precise airflow control

+ Product Details Size – 12"w X 22"h is the size for the duct opening measurement only

30" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Grilles + Product Details Size –+ Product Details Size 30"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 875" width X 6" 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