The Watts Hot Water Recirculation System 0955805 is a universal water recirculation system designed for residential standard (non-tankless) water heaters. It includes fittings, a pump, and a sensor valve, all made of stainless steel and aluminum materials. The system operates quietly and can be wall-mounted for easy installation. With a power source of a corded plug and a voltage of 120 volts, this unit is suitable for various pipe materials and offers efficient hot water recirculation.