Neptune Chemical Pump Co. Inc., of Lansdale, Pa., has introduced the new Series PZ pulse metering pump—ideal for accurate, reliable injection of a wide range of liquid materials including chemicals, nutrients and disinfectants. An economical alternative to the company’s Series PX, the PZ pump features the same revolutionary design that eliminates the need to change pump models to match the available voltage. This is the world’s first metering pump to operate on any single-phase voltage from 94 to 264 VAC.