3.5-GN-12 Flexaust #2900350012 GN 3.5 inch Air and Fume Duct Hose - 12 — HoseWarehouse
Hon&Guan 4'' Insulated Flexible Duct 8 FT Long, Black Noise Reducer Hose Silencer for Inline Duct Fan of Air Conditioner HVAC Ventilation System. - Amazon.com
TerraBloom 8 Inch Aluminum Flex Duct - 8 FT Long, Flexible Ducting with 2 Clamps, 3 Layer HVAC Ventilation Air Hose - Great for Dryer, Grow Tent, Green Houses, Household HVAC Venting - Amazon.com
Amazon.com : Ducting Hose, Flexible Duct PVC Flexible Ducting Insulated Air Vent Hose Flame Retardant with Adjustable Rope and D-Ring,for Ventilator Utility Blower Fan,5M-35CM : Tools & Home Improvement
Amazon.com: Mophorn 32ft Duct Hosing PVC Flexible Ducting Hose for 12inch Utility Blower Ventilation Fan Exhaust Fan : Industrial & Scientific
Master Flow 6 in. x 25 ft. Insulated Flexible Duct R6 Silver Jacket F6IFD6X300 - The Home Depot
Air Ventilator Insulated" Ventilation Ducts – Ducting.com
8" Air Duct Flexible Ducting 9.5 FT Long, 4 Layer HVAC Ventilation Air Hose - Great for Grow Tents, Green Houses, House Vent Register Lines (9.5 FT Long, Black) - Amazon.com