60032 Brine Valve Piston Assembly for Fleck 5600 ( also used in 5000,5800, 6600, 6700, ProFloSE,SXT Valves ). Measures 2 5/16" tall.Opens during Brine Rinse / Draw cycle, and the Brine Refill cycle, and should otherwise be "up" and "closed".Also, used in Rainsoft Silver Series valves ( their PN 17812 )Problems with this section can often be the o-ring, 13302, that sits in the hole, so be sure to check / replace this if necessary.