Vibrant Performance Aramid Reinforced Charge Air Cooler Hose Couplers are ideal for compensating minor misalignment as well as isolating vibration. The Stainless Steel rings prevent excessive expansion of the hose due to elevated pressures. All Vibrant Performance Silicone CAC Hose Couplers feature High Temperature Resistant Aramid Reinforcement Fabric between each layer of silicone which allows for an impressive Operating Temperature Range of -75 Degrees F to 392 Degrees F (-60 Degrees C to 200 Degrees C). These Hose Couplers are suitable for both hot and cold side applications and water, coolant and air service only.