The Hi-Limit & Temperature Double Barrel Sensors Kit is a dependable replacement solution for maintaining safe and efficient operation in Watkins spa heaters. Designed for Hot Spring, Tiger River, and Limelight spas, this kit includes both a temperature sensor and a hi-limit sensor, which is engineered to shut down the heater if the water temperature exceeds 118°F, helping to prevent damage and maintain user safety. Built with high-quality copper and PVC materials, the sensors are durable and resistant to corrosion, ensuring long-term reliability in wet and heated environments.