UL Listed 3" Flex Duct
This 3" (7.6cm) flexible duct tubing is UL listed and is constructed of heavy mil black PVC. It is intended for use in conjunction with the Wall Duct Boxes - the 4x8 and 4x4 boxes that are for use with the HiFlo and HiFlo Lite Fan Units. This tubing will connect to the exhaust end of the rough-in box and carry the heated air inside the walls or ceiling to vent to another area in the home.
When using ducting, ensure to use a high quality HVAC sealing tape (not duct tape) to ensure there is no air leakage.
UL Listed to Meet Most Code Requirments
Can be used in 4" Frame Walls
For Use with the HiFlo and HiFlo Lite Wall Duct Boxes
Excellent Flexibilty and Airflow
Dimensions: 3" (7.6cm) Inside Diameter & 10' (3m) in Length
Compatibility: Wall Duct Boxes - 4x4 & 4x8
Notes. Ensure to follow all code requirements and consult with HVAC or general contractors on your project to ensure that your work will pass inspections.