Ideal for joining two rigid pipes where a degree of movement or vibration occurs. For example, hard boost pipework to an intercooler, turbo inlet or outlet, or throttle body. Ramair silicone hoses are made using the highest German grade silicone compound and are manufactured in 4-ply with a 5mm wall thickness to give you the strength you need from your silicone hose. The hose is suitable for a number of applications including air, water, coolant, and many other non-petrol chemical fluids. The hose is available as standard in black, blue and red. Component Type -Silicone Hump Hose Coupler Logo -No logo Length -102mm (4") approx Colour -Select from menu Internal Diameter -Select from menu Wall Thickness -5mm Material -4-Ply Polyester Reinforced Silicone.