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20001X231 Piston Assembly

20001X231 Piston Assembly

  • 4900


Replacement piston and end plug assembly

Compatible with:

  • CSI Signature 1 and 2 softeners and filters*
  • Watersoft Isobar 2 softener and filters**

 

*Except for CSI Nitro Filters manufactured after 6/1/2015, which use 20009X231

**Except for WaterSoft Centuri Filters manufactured after 6/1/2015, which use 20009X231

Anytime you're replacing a piston, we recommend also installing a new seal & spacer kit.