20" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w26h26 Actual Filter Size – 19

Actual Filter Size – 19 3/4"w x 23 3/4" x 1"

+ Product Details Size - 10"w X 6"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 2" wider

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

20" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w26h26 Actual Filter Size – 19+ 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