The Navien 30012269B Front Panel KDC-350P is a genuine replacement component designed for compatible Navien NCB series combination boilers. It serves as the unit’s front-facing panel, providing a protective cover for internal components and supporting access to the control interface. This panel is used in residential hydronic heating and domestic hot water systems, helping maintain th... https://www.partshnc.com/30012269b-navien-tankless-water-heaters-front-panel-kdc-350p-ncb