+ Product Details Size - 4"w X 22"h is the size for the duct opening measurement only
+ Product Details Size – 12"w X 24"h is the size for the duct opening measurement only
Design – Cubic core eggcrate design Offers highest airflow efficiency at almost 95%
+ Product Details Size – 15" Wooden Corner Baseboard Grille
See our separate listing for T-Bar supply grille
24" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Compatible with Duct 10" + Product Details Size -+ Product Details Size 24"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 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