20922C203 Piston Assy. - Isobar 1 Filter - Orange Cap (Old Style) Sidewindr Float assembly sold seperately as

Float assembly sold seperately as p/n 63555C103

This kit will replace all of the electrical components of any Signature II softener or filter

The D-15 Vertical Adapter Set allows you to mount the bypass valve vertically rather than horizontally

We recommend installing a new seal & spacer kit anytime a piston is being replaced

this motor will not be compatible with your powerhead

20922C203 Piston Assy. - Isobar 1 Filter - Orange Cap (Old Style) Sidewindr Float assembly sold seperately asReplacement piston assembly for WaterSoft Isobar 1 filter control valves manufactured prior to 2010. If you aren't sure how old yours is, take off the back cover and look at the color of the piston cap (also called the "end plug"). If your filter has an orange cap like this one, then you need to use this piston. If your piston has a White Cap, you need the 20561X254 If your piston has a Black Cap, you need the 20562X254 Note: We recommend installing a