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

+ Product Details Size – 40"w X 10"h is the size for the duct opening measurement only

With a solid base for stability

actual front end outer dimensions are approximately 27 5/8" width X 24 5/8" height

providing a stylish and practical solution for ventilation

Actual Filter Size – 11 3/4"w x 33 3/4" x 1"

18" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling with filter + Product Details Size –+ Product Details Size 18"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 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