10" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Compatible with Duct 8" actual front end outer dimensions

actual front end outer dimensions are approximately 30 5/8" width X 36 5/8" height

+ Product Details Size – 30"w X 26"h is the size for the duct opening measurement only

Actual Filter Size – 7 3/4"w x 35 3/4" x 1"

actual front end outer dimensions are approximately 18 5/8" width X 18 5/8" height

Actual Filter Size – 13 3/4"w x 31 3/4" x 1"

10" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Compatible with Duct 8" actual front end outer dimensions+ Product Details Size 10"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 875" width X 12" 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