This AERCO Capacitor Kit is designed to function as a Low Water Cut-Off (LWCO) device. The kit includes a capacitor, which is an electronic component that stores and releases electrical energy. This particular capacitor has been specifically designed for use in LWCO systems, where it plays a crucial role in preventing the boiler from operating when the water level drops below a safe limit. The kit also includes all necessary hardware for installation and detailed instructions to ensure proper setup. It is compatible with various models of AERCO boilers, providing an essential component for maintaining safe and efficient operation of the heating system.