20" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 10" Diameter Actual Filter Size – 31

Actual Filter Size – 31 3/4"w x 33 3/4" x 1"

modern look and superior functionality

actual front end outer dimensions are approximately 20 5/8" width X 32 5/8" height -

Actual Filter Size – 21 3/4"w x 7 3/4" x 1"

875" width X 18" height

20" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 10" Diameter Actual Filter Size – 31+ Product Details Size 20"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 75" width X 13. 75" 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