Navien 20006948A - 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 Navien’s condensing gas products.

Made from EPDM rubber, the 20006948A offers excellent resistance to heat, pressure, and chemical exposure. It’s 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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Collection: NHB

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20006948A - O-Ring - EPDM, 15.8 x 2.7 mm