Replacement Piston for softeners and filters that use the following control valves:

• Fleck 5600
• CSI "CSA"
• Cygna 
• Water Soft Isobar 1 (2092)
• Techtonics CB32D, TI32D, CX-01

If your piston has an orange cap instead of a white cap, you need the 20922C203

If your piston has a black cap, you need the 20562X254

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