20001X231 Piston Assembly Isobar 2 **warning: not for use with

**warning: not for use with units that contain KDF media or KDF foam cubes

Cygna softener & filter valves

Used on CSI Nitro and Watersoft Centuri aeration filters

CSI Nitro injector assembly (white injector)

provides a greatly improved service life while achieving high flow rates with low pressure drop

20001X231 Piston Assembly Isobar 2 **warning: not for use withReplacement piston and end plug assembly Compatible with: CSI Signature 1, 2, and 3 softeners and filters* Watersoft Isobar 2 & 3 softener and filters** Clearion 300 Series Softener and filters*** *Except for Sidekick or Nitro Filters manufactured after 6 1 2015, which use 20009X231 **Except for Sidewindr or Centuri Filters manufactured after 6 1 2015, which use 20009X231 ***Except for Sidekick or 360 Filters manufactured after 6 1 2015, which use