24" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Filter Grille Actual Filter Size – 31

Actual Filter Size – 31 3/4"w x 11 3/4" x 1"

Actual Filter Size – 31 3/4"w x 25 3/4" x 1"

Say goodbye to pest-related worries as the built-in back 1/2" mesh acts as a barrier against unwanted rodents like mice

+ Product Details Size – 8"w X 20"h is the size for the duct opening measurement only

+ Product Details Size – 36"w X 10"h is the size for the duct opening measurement only

24" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Filter Grille Actual Filter Size – 31+ Product Details Size 24"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 875" width X 14" 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