+ Product Details Size - 14"w X 16"h is the size for the duct opening measurement only
With a solid base for stability
this model allows for mounting without removing the thermostat
baffles and plaster frames available
+ Product Details Size – 10"w X 24"h is the size for the duct opening measurement only
10" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Return + Product Details Size -+ Product Details Size 10"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 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