The Chicago Faucet CGFT892-302KJKABNF Vacuum Breaker Repair Kit helps restore proper backflow protection in commercial faucets by replacing worn internal vacuum breaker components. Manufactured by Chicago Faucets, this repair kit is designed for compatible atmospheric vacuum breakers used in plumbing systems. It works by replacing key internal parts such as the poppet, seat, and O-ring, which create a seal that prevents contaminated water from flowing back into the clean water supply when pressure changes occur.By restoring this protective mechanism, the kit helps maintain water safety, supports proper faucet operation, and reduces the need for full assembly replacement, making maintenance more efficient and reliable.