Navien Silicone O-Ring

The Navien Silicone O-Ring is an OEM replacement seal for Navien boilers and water heaters. It is made from silicone rubber. A worn or hardened O-ring can leak, so replacing it helps keep the water and heating connections sealed.

Key Features:

• Silicone construction: Silicone resists heat, chemicals and aging, which suits the hot, demanding conditions inside boiler and water heater systems.
• Precision metric sizing: Each O-ring is made to Navien's specified dimensions so it seats properly and seals.
• OEM replacement part: It is a Navien-branded part, so it matches the original seal.
• Easy to install: The compact design makes it simple to fit during routine maintenance or repair.

Use these Navien silicone O-rings (also called silicon O-rings or replacement seals) when you service Navien tankless water heaters and boilers. Pick the variant that matches the size of your original seal.