18" X 14" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 10in diameter + Product Details Size –

+ Product Details Size – 22"w X 36"h is the size for the duct opening measurement only

Actual Filter Size – 21 3/4"w x 19 3/4" x 1"

Actual Filter Size – 24 3/4"w x 17 3/4" x 1"

Actual Filter Size – 13 3/4"w x 24 3/4" x 1"

Actual Filter Size – 33 3/4"w x 15 3/4" x 1"

18" X 14" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 10in diameter + Product Details Size –+ Product Details Size 18"w X 14"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 875" width X 16" 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