20" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Floor Grille actual front end outer dimensions

actual front end outer dimensions are approximately 24 5/8" width X 16 5/8" height

+ Product Description Enhance your HVAC system with our Aluminum Return Filter Linear Bar Grille

Actual Filter Size – 7 3/4"w x 5 3/4" x 1"

Actual Filter Size – 11 3/4"w x 27 3/4" x 1"

20" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Floor Grille actual front end outer dimensions+ Product Details Size 20"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 875" width X 6" 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