Orange Silicone 500F CAC Hose, 3.75" ID, 6" L SR22 but it can also be

but it can also be used to protect fittings in storage

This is critical to prevent the hose from coming off under pressure

5mm wall thickness (113mm / 4 7/16" OD)

It will handle an air-fuel mixture and will survive occasional spills and oil leaks

Orange Silicone 500F CAC Hose, 3.75" ID, 6" L SR22 but it can also beCharge Air Cooler (CAC) hose is specifically designed to handle the higher temperatures and pressures in high performance turbo and supercharged applications. Four layers of aramid reinforcement and 3 reinforcing rings allow operating pressures of 42 psi (170 psi burst pressure) and temperatures up to 500 F (260 C). This temperature rating is perfect for the "hot" (pre intercooler) side of the system. This hose is color coded Orange for easy