Package list: Water Softener Interior Rebuild Kit for Clack WS1 include V3005 Spacer Stack Assembly, V3174 Brine Regenerant Piston, V3011 Downflow Piston and V3193 Filter Wrench for service on 1" or 1-1/4" WS1 and backwashing valves. 【Complete Rebuild Kit for Clack WS1】This professional maintenance kit includes all essential components to restore your water softener: V3005 Spacer Stack Assembly, V3174 Brine Regenerant Piston, V3011 Downflow Piston and V3193 water softener repair wrench. Everything you need for a complete interior rebuild of your Clack WS1 valve in one convenient package. 【Precision Parts】Each component is precision-engineered to meet or exceed OEM specifications, ensuring a perfect fit for your Clack WS1, WS1TC, WS1CS, and other WS1 series control valves. 【Fixes Common Softener Issues】Ideal for addressing frequent problems such as brine draw failure, hard water bypass, regeneration errors, or internal leaks. This WS1 water softener interior rebuild kit replaces critical wear parts to restore your system's efficiency. 【Hassle-Free Installation】The included V3193-02 service wrench is built for durability and ease of use, allowing for quick and hassle-free disassembly and installation. Whether you're a DIY enthusiast or a professional technician, this tool simplifies maintenance and helps you complete the job in minutes without requiring specialized equipment. 【1-Year & Support】All WS1 Interior parts are rigorously inspected and backed by a 1-year , so you can with complete peace of mind. If you have any questions or encounter any issues while using this product, our team is always ready to assist you promptly.