2850 Piston Assembly for softener applications.
Includes part numbers 10909, 16092, 16395, and 16436.

NOTE: There are other versions of this piston assembly.
Such as, NHWBP ( No Hard Water By Pass, # 60114-01 ), and Hot Water applications ( # 60105-01 ).
Email for price and aviability if you need one of this special types.