Cole palmer "materflex ip" digital consold drive for peristaltic pump head, model 77420-00. Features all stainless steel body, pump drive port, touch sensitive controls, variable speed to 650 rpm, flow rate indicator based on tube size, priming function, 115/230/1 phase voltage, 50/60 hz, 4. 5/2. 5 amps, . 38 horsepower, mounted on casters. Formerly used in pharmaceutical service.