The Multiplex 19-0897 Beverage Dispenser Backflow Preventer Assembly helps protect beverage dispensing systems by preventing contaminated water from flowing backward into the clean water supply. Designed for compatible dispenser equipment, this assembly uses an internal backflow prevention mechanism to control water direction and help maintain proper separation between the potable wat... https://partsfe.ca/multiplex-19-0897-beverage-dispenser-backflow-preventer-assembly-1022/2-19-0897.html