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

+ Product Details Size – 32"w X 18"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 30 5/8" width X 20 5/8" height

+ Product Details Size – 16"w X 36"h is the size for the duct opening measurement only

Actual Filter Size – 15 3/4"w x 7 3/4" x 1"

+ Product Details Size - 10"w X 34"h is the size for the duct opening measurement only

18" X 14" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 14in 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