actual front end outer dimensions are approximately 23
3 * insulation density is 30kgs/cbm = 0
+ Product Details Size - 34"w X 22"h is the size for the duct opening measurement only
+ Product Details Size - 26"w X 12"h is the size for the duct opening measurement only
Design – This airflow control component are made to connect to HVAC diffuser and restrict airflow
24" X 20" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 18" Round Duct Pipe actual front end outer dimensions+ Product Details Size 24"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 875" width X 22" 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