The Navien 30024113A Inlet Adapter Assembly is a replacement plumbing component designed for compatible Navien tankless water heaters. It provides a secure connection for incoming water or the designated inlet line, allowing proper fluid flow into the heating unit. This assembly supports reliable water delivery to the heat exchanger, helping the system produce hot water on demand. Its... https://www.partshnc.com/30024113a-navien-tankless-water-heaters-inlet-adapter-assembly-wwav