Navien 20018079A Silicone O-Ring G75 74.4mm x 3.1mm

The Navien 20018079A is a genuine OEM silicone O-ring designed for use in Navien tankless water heaters and boilers. This precision-engineered sealing component ensures leak-free operation and maintains system integrity in critical heating applications.

Key Features:

• Genuine Navien factory OEM replacement part
• High-grade silicone construction for superior temperature resistance
• Precision dimensions: 74.4mm inner diameter x 3.1mm thickness (G75 designation)
• Provides reliable sealing between mating surfaces in water heaters and boilers
• Resistant to corrosion, mineral deposits, and thermal degradation
• Maintains flexibility and sealing performance under pressure and heat

This O-ring is a critical sealing component that prevents fluid leakage and maintains proper pressure integrity within Navien heating systems. The silicone material provides excellent durability in high-temperature environments while resisting degradation from exposure to water and minerals. Brand new in original Navien factory packaging, this genuine OEM part is guaranteed to fit and function properly in compatible Navien equipment.