Blue Silicone 350F CAC Reducer Hose, 3.50 x 3.00" ID, 6" L COOLREDUCESTRT This size has a 20mm

This size has a 20mm (13/16") ID

The 3-ply reinforcement results in a working pressure rating in excess of 30 psi (135 psi burst pressure) and a 4

3 foot) long straight hoses have a 2 1/2" (63mm) ID with a smooth

The 4-ply reinforcement results in a working pressure rating in excess of 30 psi (135 psi burst pressure) and a 5mm wall thickness (61mm / 2 3/8" OD)

black only

Blue Silicone 350F CAC Reducer Hose, 3.50 x 3.00" ID, 6" L COOLREDUCESTRT This size has a 20mmCharge Air Cooler (CAC) hose is specifically designed to handle the higher temperatures and pressures in high performance turbo and supercharged applications. Four layers of polyester reinforcement and 3 reinforcing rings allow operating pressures of 42 psi (170 psi burst pressure) and temperatures up to 350 F (180 C). Note that this temperature rating is best suited to the "cold" (post intercooler) side of the system. This hose is color coded Blue