The Model MC Circuit Setter Hose Kit is a Manual flow control hose kit. The Circuit Setter Valve is a pressure dependent flow control device that maintains constant fluid flow in a system where the pressure remains constant. The Valves can simply be pre-set using the B&G Circuit Setter Balance Valve Calculator, curve booklet G10091, or the System Syzer application. The Circuit Setter adjustment handle features a memory stop, so the valve can provide shut off capability and then be easily and accurately returned to its proper operating position. The valve includes two pressure/temperature test ports for flow verification and diagnostics.