The Neo-Pure Leak Detector Stop Valve with 1/4" quick-connect fittings is a safety device designed to detect leaks in water filtration systems and automatically shut off the water supply to prevent potential damage. It utilizes a super-absorbent pad that expands upon contact with water, triggering the valve to close and halt water flow. This mechanical design operates without the need for power or batteries, ensuring reliable performance. The valve is reusable; simply replace the absorbent pads as needed. Its quick-connect fittings allow for easy installation in various applications, including under-sink filtration systems, ice makers, and coffee machines.