Rebuild kit for the Fleck 2510 softener valve. Kit includes piston assembly and seal & spacer kit, and brin valve (Fleck part# 61670-00 and 60011). For the Fleck 2510 filter valve rebuild kit, see FP-61670-00. Product Features Fleck 2510 Softener Rebuild Kit Rebuild kit for the Fleck 2510 softener valve. Kit includes piston assembly, seal & spacer kit, and the brine valve (Fleck part# 61670-00 and 60011) Fleck Parts These are genuine Fleck parts, not generic replacements Product Description Rebuild kit for the Fleck 2510 softener valve. Kit includes piston assembly and seal & spacer kit, and brin valve (Fleck part# 61670-00 and 60011). For the Fleck 2510 filter valve rebuild kit, see FP-61670-00.