Parker Hannifin Corp. / Zenith three (3) melt pump station. Each pump has a 3HP 380/460-Volt motor. Left & right pumps have 3/4″ OD material entries and 450 watt 230-Volt heaters. Center pump has 1,400 watt 230-Volt heaters and a 1.5″ OD material entry. Everything is mounted on a common frame. Approximately 1993 model year.