Rubber-Cal 4 in. I.D. x 25 ft. HVAC Ventilation-Flexible Duct 01-225-4 - The Home Depot
High Temp 1-Ply Silicone Air Duct Hose, 450F, Orange Only | Pegasus Auto Racing Supplies
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HVAC Ventilation Flex - Ducting.com
iPower Flexible 3/4/6/8 inch Aluminum Ducting Dryer Vent Hose for HVAC Exhaust | eBay
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Amazon.com: Vintage Air 318010 Duct Hose (2.5in 10ftPiece) : Automotive
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TerraBloom 6 Inch Aluminum Flex Duct - 25 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
4/6 inch Aluminum Foil Air Duct Flexible Ducting with 2 Clamps HVAC Ventilation Air Hose
4/6 inch Aluminum Foil Air Duct Flexible Ducting with 2 Clamps HVAC Ventilation Air Hose
Appliance Pros AP4395481 Non Insulated Flex Air Aluminum Foil Duct Exh
Flex Air Duct | Flexible HVAC Ductwork | 14" x 25" Tube - $44.99