This 3" (7.6cm) flexible duct tubing is insulated and UL listed. It is intended for use in conjunction with 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 exhaust end of 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.
Dimensions: 3" (7.6cm) Inside Diameter & 25' (7.6m) 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.
This Unit Does Not Qualify for Free Shipping