Actual Filter Size – 11 3/4"w x 13 3/4" x 1"
actual front end outer dimensions are approximately 28 5/8" width X 20 5/8" height
+ Product Details Size – 28"w X 10"h is the size for the duct opening measurement only
allow you to customize airflow direction with ease
Design - special "V" shaped louvers ensure 100% view block while ensuring easy un-restricted air flow
24" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Return Grille Actual Filter Size – 11+ Product Details Size 24"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 875" width X 10" 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