Vibrants selection of Reinforced Silicone T-Hose Couplers are very convenient for coolant and turbo intake plumbing projects. Featuring Polyester Fabric Reinforcement, our T-Hose Couplers have an Operating Temperature Range of -75 Degrees F to 392 Degrees F (-60 Degrees C to 200 Degrees C). Suitable for Water, Coolant and Air service only. Not suitable for Oil or Fuel Service.