14" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Return Premium Airflow Efficiency - High-performance

Premium Airflow Efficiency - High-performance cube core eggcrate design allows 95% airflow efficiency

actual front end outer dimensions are approximately 18 5/8" width X 28 5/8" height

actual front end outer dimensions are approximately 10 5/8" width X 36 5/8" height

+ Product Details Size - 18"w X 14"h is the size for the duct opening measurement only

Universal Fit – With dimensions of 4-1/8" wide x 7-1/16" high x 2-1/8"

14" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Return Premium Airflow Efficiency - High-performance+ Product Details Size 14"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 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