5/16" (8mm) HPS High Temp Performance Silicone Heater Hose 1 ft roll Black Max Temperature Rating: 350F. Max Working Pressure: 85 psi. Bend Radius: 1-1/4" Sold per foot. Will be shipped in one single continuous roll instead of multiple single foot section. Silicone hose is NOT compatible with fuel or oil; however, it is compatible with water and anti-freeze such as coolant. Meet and exceed SAEJ20 industry standards, great for marine and industrial use, custom turbo or radiator cooling system. Resistant to coolants, cold leaks, cracking, peeling, aging and ozone.