Corrugated Black PVC Flexible Pond Hose & Ducting With 2 Pipe Clips - AutoSiliconeHoses.com
Black High Temp Silicone 2 Ply Air Ducting - Hot Cold Air Engine Brake Cooling | eBay
Hon&Guan 4'' Insulated Flexible Duct 4 FT Long, Black Noise Reducer Hose Silencer for Inline Duct Fan of Air Conditioner HVAC Ventilation System. : Amazon.co.uk: DIY & Tools
TerraBloom 6" Air Duct - 25 FT Long, Black Flexible Ducting with 2 Clamps, 4 Layer HVAC Ventilation Air Hose - Great for Grow Tents, Dyrer Rooms, House Vent Register Lines :
63mm (2 1/2") Duct Hose Black PVC Per Metre | Car Builder - Kit & Classic Car Parts Specialist
Ronbar 50mm Black Ducting (50M Reel) (NR050BL) | CEF