Actual Filter Size – 27 3/4"w x 11 3/4" x 1"
+ Product Details Size – 30"w X 10"h is the size for the duct opening measurement only
allow you to customize airflow direction with ease
High Quality – Solid stamped steel with counter-sunk screw holes (screws included) and no sharp edges
actual front end outer dimensions are approximately 12 5/8" width X 32 5/8" height -
16" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Supply Grille Actual Filter Size – 27+ Product Details Size 16"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 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