The Jackson 4820-200-23-00 Vacuum Breaker Repair Kit is a service kit designed to restore proper backflow prevention in compatible commercial dishwashing equipment. It works by replacing worn internal components within the vacuum breaker, allowing the device to maintain an air gap that prevents contaminated water from flowing back into the potable water supply. Performing this repair ... https://partsfe.com/repair-kit-for-jackson-part-4820-200-23-00