Copeland 985 CP2M 7K Pressure Control 324846 701 Robust Construction: Features a durable Robust Construction: Features a durable brass body and a proven magnetic operator for long cycle life in demanding environments Its corrosion resistant finish and robust construction ensure long term reliability in demanding commercial environments where precision actuator linkage performance is critical The dual bellows design allows for independent control of low pressure cycling (cut in cut out) and high pressure safety protection while the high side handles 100 to 450 psig with a fixed 50 psig differential for high pressure cutout security