The Navien WUA500 is a compact under-sink water treatment system that uses advanced activated carbon block filtration to reduce chlorine, lead, VOCs, pharmaceuticals, microplastics, and other contaminants while improving taste and odor. Designed for easy installation, the WUA500 features a space-saving tankless design, smart faucet with LED filter alerts, and an easy twist-lock cartridge with built-in shut-off valve for fast maintenance. NSF-certified performance and long-lasting 500-gallon filters make it an ideal drinking water filtration solution for residential applications.

• Designed to improve taste and odor using carbon block filtration
• Stylish faucet with integrated color LED and audible alerts for easy filter and battery monitoring
• Water stops automatically when cartridge is removed
• Connects directly to cold water line using included T-adapter and tubing
• Filter attaches with a firm twist, guided by alignment grooves for fast replacement
• Under-sink carbon filtration system with smart faucet