16" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Color_Anodized Aluminum actual front end outer dimensions

actual front end outer dimensions are approximately 30 5/8" width X 30 5/8" height

These are specially sized to fit into all drop ceilings

+ Product Details Size – 20"w X 30"h is the size for the duct opening measurement only

Actual Filter Size – 24 3/4"w x 29 3/4" x 1"

actual front end outer dimensions are approximately 22 5/8" width X 22 5/8" height

16" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Color_Anodized Aluminum actual front end outer dimensions+ Product Details Size 16"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 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