Restore your water treatment system to peak performance with the Clack WS1 DownFlow Rebuild Kit. This comprehensive service kit is designed specifically for the industry-standard WS1 valve, providing all the essential internal components needed to stop leaks, resolve cycle errors, and ensure efficient regeneration.  

Instead of replacing the entire control head, this professional-grade kit allows you to refresh the "heart" of your valve, significantly extending the lifespan of your water softener or filter system.

Complete Kit Includes

1 x WS1 Downflow Piston Assembly - Part #V3011

1 x WS1 Spacer Stack Assembly - Part #V3005

1 x WS1 Regenerant Piston - Part #V3174