The Series MP7000 mechanically actuated diaphragm metering pump from Neptune Chemical Pump provides reliable and accurate dosing of a wide range of mild to aggressive chemicals, including those used in industrial and municipal water and wastewater treatment. It incorporates the ruggedness of a hydraulic diaphragm metering pump, eliminates the need for intermediate fluid or hydraulic oil to actuate the diaphragm and reduces the potential for gearbox oil to contaminate the process. It also offers a finned gearbox that dissipates the heat created during normal operation and oversized check valves that improve performance by minimizing friction losses. It offers capacities to 27 gph at operating pressures up to 235 psi. 215-699-8700; www.neptune1.com