Hon&Guan 6 Inch Air Duct - 16 FT Long, Black Flexible Ducting HVAC Ventilation Air Hose for Grow Tents and Ventilation System

Hon&Guan 8 Inch PVC 25 FT Flexible Duct with Adjustable Rope and D-Shaped Rings, Suitable for Free Hanging and Utility Blower Exhaust Fan Support

Hon&Guan 3 Inch Diesel Heater Hose Kit, Flexible Nylon Air Vent Set with Adjustable Y Splitter, Two 8FT Ducts, 3FT Outlet Pipe, Air Vents and Clamps for 5KW–8KW Heaters