Main Piston Assembly ( P.N. 60090 is Brass with Teflon coating ) used in Fleck 1500, 2500, 2510, 2700.
This assembly comes complete with seal o-ring end plug PN 40078, old part number 10234, and quad o-ring ( 10209 ).
Other parts that are part of this assembly are, 15168, Plunger, and 14039, Retainer, and 14452, Piston Rod, and 10598, End plug.
CUNO ( Aqua Pure ) cross reference PN 55664-71.
Note: We do not sell the "piston" portion ( piston, 2500, 2510 = 15168 ) separately. Only in this Assembly ( 60090 ).
Matching Seal and Spacers Kit is 60121.NOTE: If the Valve is Leaking from the Front of the Main Piston, you Must Replace the Main Piston Assembly to stop this type of EXTERNAL Leak.
The Seals and Spacers need replacing when you have "internal" leaking of the Valve.
This would be constant flow out the drain line, or failure to create suction ( after injector and brine valve check out okay ), or hard water getting into the house when everything else appears to be working fine.NOTE: Does NOT fit General Ionics valves.