The Chicago Faucet CGFT892-202KJKNF Vacuum Breaker Repair Kit restores vital backflow prevention capabilities to plumbing fixtures to protect the commercial kitchen\'s potable water supply from contamination. This comprehensive maintenance assembly functions by replacing worn internal components—including the float, seal, and required O-rings—within the existing vacuum breaker body. When water flows, the internal mechanism rises to seal off the atmospheric vent, and when flow stops, it drops to admit air and break any dangerous siphoning action. Rebuilding the valve body with these genuine parts eliminates persistent dripping leaks, avoids costly full-valve replacements, and ensures immediate compliance with local health and safety plumbing codes without disrupting daily kitchen operations or sacrificing consistent line pressure.