30" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w26h26 actual front end outer dimensions

actual front end outer dimensions are approximately 8

With these options

[Outer Dimensions: 18

while the included installation screws make setup quick and hassle-free

Designed for optimal air flow and lasting durability

30" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w26h26 actual front end outer dimensions+ Product Details Size 30"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 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