The Navien 30011532B Water Adjustment Valve is a precision component designed for Navien tankless water heaters. It regulates water flow and pressure to ensure stable operation and consistent temperature control. Engineered for reliability and durability, this valve optimizes system efficiency and enhances performance under varying demand conditions. https://www.partshnc.com/30011532b-navien-tankless-water-heaters-water-adjustment-valve