Features: Ensures pool heater operates efficiently with the 77707-0001 Manifold Bypass Valves Replacement Kit, suitable for compatibility and enhances safety. This replacement kit features a high strength metal spring and a waterproof, rust proof coating, optimizing water Flows and extending the life of your heating system. Suitable for Mastertemp systems, pool maintenance technicians, and swimming pool management companies needing reliable equipment performances. Perfect for residential pools, public swimming facilities, and spa, this kit ensures stable and efficient operation of your pool and spa heaters. With all necessary components included, installation is straightforward, reducing maintenance time and effort while ensuring your heating system remain in top condition. Specifications: Component:ABS Size:Approx.7.49cm/2.95inch Package Includes: 1Pc Manifold Bypass Valves note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.