The Navien 30014367B Backdraft Damper is a genuine OEM replacement part designed to prevent unwanted airflow from entering the venting system of compatible Navien tankless water heaters. This component ensures proper exhaust function, protects the unit from external air intrusion, and helps maintain safe, efficient operation.

Constructed from durable, corrosion-resistant materials, the 30014367B is engineered for long-term reliability in residential or light-commercial installations. Its straightforward design allows for quick, secure installation by plumbers, HVAC technicians, or service professionals.

Key Features

• OEM Navien part for proper fit and performance

• Prevents reverse airflow into the tankless system

• Protects venting system and improves operational safety

• Durable construction for long service life

• Easy installation for service technicians and contractors

• Compatible with select Navien NPE and NPN models (check model compatibility before ordering)

Ideal for maintenance, repair, and replacement on Navien tankless water heating systems.

At Apex Supply Company, we offer local pickup, local delivery, and nationwide shipping.