HPS HTSVH8-BLUEx5 Blue 5' Length High Temperature Silicone Vacuum Tubing Hose (40 psi Maxium Pressure, 5/16" ID) Hose Inside Diameter: 5/16" (8mm). Length: 5 Feet Roll Made of High Temp Premium Grade Silicone. Meet and exceed SAEJ20 industry standards, ideal for heavy duty pressure connections and provides excellent resistance for high temperature applications Great for marine and industrial use, custom turbo or intercooler piping fabrication, DIY intake or radiator cooling system Heavy wall design gives it the ability to handle extreme pressure UV and ozone resistant. Silicone hose is NOT compatible with fuel or oil