6" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 18in diameter + Product Details Size –

+ Product Details Size – 22"w X 18"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 12 5/8" width X 22 5/8" height -

+ Product Details Size – 18"w X 28"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 26

actual front end outer dimensions are approximately 16 5/8" width X 34 5/8" height

6" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 18in diameter + Product Details Size –+ Product Details Size 6"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 875" width X 8" 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