This comprehensive repair kit contains all the necessary parts to service your Febco 765 backflow preventer or vacuum breaker. It includes new bonnet and poppet assemblies precisely engineered to Febco's high standards. With this upgrade kit, you can restore your device to like-new working condition. The durable polypropylene construction ensures long-lasting performance for many years of backflow protection. Installing the new internals takes just minutes without special tools - simply disassemble the worn components and snap in the replacements. Proper maintenance is essential to protect water quality and this affordable repair kit makes it easy to comply with testing regulations. Restore peak performance to your Febco unit and keep water flowing safely with this essential upgrade.