20" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Grilles Actual Filter Size – 29

Actual Filter Size – 29 3/4"w x 23 3/4" x 1"

Versatile Compatibility: Our ceiling grills aren't limited to just T bar drop ceilings

+ Product Details Size – 12"w X 36"h is the size for the duct opening measurement only

Choose our premium HVAC grilles and registers for long-lasting durability

+ How To Measure A Grille

20" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Grilles Actual Filter Size – 29+ Product Details Size 20"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 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