2 5 16 in I.D. Black Straight Silicone Coolant Hose 36 inches id_1_4.75 This sleeve style air spring is This sleeve style air spring is used as a cab sleeper mount air spring across heavy duty truck platforms Typically axle mounted to serve two spring brake chambers OEM Heavy Duty Vehicle Requirements High Temperature Option Available with Meta Aramid Fabric Reinforcement for Extreme High Temperature (Upon Request) Liner Options Available with Fluorosilicone or Fluorocarbon Liner (Petroleum & Chemical Applications) Vacuum Resistance Available with Helical Wire Reinforcement for Vacuum Resistance Temperature Range 65°F to 350°F Continuous Colors Blue or Black Leg Length 10” Long Legs From Center of the Bend Measurement Leg Lengths Are Measured From The Centerline of the Hose RP 303B Class 1