Kinetico Level 2 Seal - 2020C, Mini-KB, Aqua-Blu, BSS models + all commercial Part Number 8630

The Kinetico Level 2 Seal (Part No. 8630) is a genuine replacement O-ring used across a wide range of Kinetico domestic and commercial water softeners, including the 2020C, Mini-KB, Aqua-Blu and BSS models. This precision-made seal ensures a watertight connection within the valve body, preventing internal leakage and maintaining efficient regeneration cycles.

Technical specifications

Symptoms that mean you need this part

• Continuous water running to drain
• Reduced soft-water performance
• Pressure loss or water bypass
• Due for routine servicing or a valve rebuild (typically every 5–10 years)

Why it fails / why it matters

The Level 2 seal maintains hydraulic separation within the valve body as the system cycles between service and regeneration. Repeated cycling and exposure to chlorinated mains water gradually harden the elastomer, reducing its ability to seal fully and allowing hard-water bleed or drain loss.

Why buy this from WrekinWater

WrekinWater has served more than 50,000 customers over 15 years from its base in Bettisfield, Shropshire, and stocks genuine Kinetico seals and internal valve parts alongside Pentair Fleck, Autotrol and Clack components. As a UK-registered company (Company No. 11000488) rated Excellent on Trustpilot, we help you get the exact seal your valve needs.

How to fit it

1. Isolate the softener at the bypass valve and relieve system pressure
2. Open the valve stack to access the Level 2 section
3. Remove the old seal and clean the mating surfaces thoroughly
4. Lubricate the new seal with food-grade silicone grease (never petroleum jelly)
5. Seat the seal evenly, avoiding any twisting or stretching
6. Reassemble the valve stack and restore the water supply, checking for leaks