The Rinnai O-Ring (807000215) is a genuine OEM sealing component for i-Series Plus combination boilers. O-rings are used throughout the water circuit at fittings, valves, and assemblies to prevent water leaks. Heat cycling, pressure fluctuations, and water chemistry exposure can cause O-rings to harden, crack, or deform over time. Replacing with this OEM O-ring restores a proper water-tight seal and prevents damage from leaks. Always replace O-rings when disassembling hydraulic components during service.
- Genuine OEM Rinnai replacement O-ring
- Compatible with Rinnai i-Series Plus combination boilers
- Provides a reliable water-tight seal in the hydraulic circuit
- OEM dimensions and material ensure correct fitment
- Replace during any hydraulic component service to prevent leaks