Navien 20022322A EPDM O-Ring 29.8mm x 2.4mm

The Navien 20022322A is a genuine OEM replacement O-ring designed for Navien tankless water heaters and hydronic heating systems. This precision-engineered seal is manufactured from EPDM (Ethylene Propylene Diene Monomer) rubber, which provides excellent resistance to heat, water, and the temperature extremes commonly encountered in water heating applications.

Key Specifications:

• Material: EPDM rubber for superior heat and chemical resistance
• Inner diameter: 29.8mm (approximately 1.17 inches)
• Cross-section thickness: 2.4mm (approximately 0.09 inches)
• Genuine Navien OEM part ensures proper fit and reliable performance
• Designed for use in various Navien water heater and boiler models

This O-ring provides a critical seal to prevent water leaks and maintain system pressure. EPDM material is specifically chosen for its durability in hot water environments and resistance to degradation from continuous exposure to temperature cycling. Regular replacement of O-rings during maintenance helps ensure optimal system performance and prevents costly water damage from failed seals.