Navien20006948A – O-Ring – EPDM, 15.8 x 2.7 mm

The Navien 20006948A is a large-diameter EPDM O-ring engineered for sealing applications across multiple Navien water heater and boiler models. With a 15.8-inch diameter and 2.7-millimeter thickness, this genuine OEM part provides a secure, leak-resistant seal in high-performance systems. It is specifically designed to meet the fit and durability standards required for Naviens condensing gas products.

Made from EPDM rubber, the 20006948A offers excellent resistance to heat, pressure, and chemical exposure. Its compatible with units from the NHB, NCB, CC/CR, CH/CH-ASME, NPE, and NR/NP series, making it a trusted choice for both residential and commercial maintenance or repairs.

Features

• 15.8″ diameter O-ring with 2.7 mm thickness
• Made of durable, heat- and chemical-resistant EPDM rubber
• Genuine Navien OEM replacement part
• Ensures tight sealing and leak prevention
• Black in color

Applications

• Navien NHB-55 condensing gas boilers
• NCB, CC/CR, CH/CH-ASME condensing gas combination boilers
• NPE, NR/NP tankless water heaters
• Use in high-temperature, high-pressure sealing locations
• Ideal for servicing or replacing original Navien O-rings

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