The Rinnai O-Ring (807000203) is a genuine OEM sealing component for i-Series Plus combination boilers. Used at critical points in the water circuit, this O-ring prevents water leaks that can lead to system damage and reduced efficiency. O-rings degrade over time due to heat exposure, pressure cycling, and water chemistry, requiring periodic replacement. This OEM part ensures proper fitment and a durable seal to keep your Rinnai boiler operating reliably.
- Genuine OEM Rinnai replacement O-ring
- Compatible with Rinnai i-Series Plus combination boilers
- Seals water circuit connections to prevent leaks
- Replace whenever disassembling hydraulic components
- OEM fitment guarantees correct size and material