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

+ Product Details Size - 18"w X 12"h X 2"d (for duct opening measurement only)

+ Product Details Size – 34"w X 30"h is the size for the duct opening measurement only

High Quality – High quality steel construction

Installation – Easy drop ceiling installation

+ Product Details Size – 24" Wooden Corner Baseboard Grille

30" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Color_Anodized Aluminum + 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