This 4" (10.2cm) flexible duct tubing is insulated and is NOT UL listed. It is intended for use with the Return Vent System. This tubing will connect to the exhaust end of rough-in box and carry the heated air inside the walls or ceiling to vent to another area in the home. Optimally, this will connect to the HVAC return air venting allowing the heated air to mix with the air in the home and then be recycled by the HVAC system. When using ducting, ensure to use a high quality HVAC sealing tape (not duct tape) to ensure there is no air leakage. Features Non-UL Listed For Use with the Return Vent System General Specifications Dimensions: 4" (10.2cm) Inside Diameter & 25' (7.6m) in Length Compatibility: Return Vent System 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 ShippingActual product may look different than the image provided
Dimensions: 4" (10.2cm) Inside Diameter & 25' (7.6m) in Length Compatibility: Return Vent System 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 ShippingActual product may look different than the image provided
