The manufacturer of Rheodyne EV500-104 Column Selector is Rheodyne. Model is EV500-104. EV platforms generally offer classic column selectors and other liquid-end independent ready-to-use devices.
Specification
Condition: used Differential Pressure Maximum: 5000 psig Positions: 6 Ports: 14 Volts: 100-240 Power: 50/ 60 Hz. Weight: 16 lbs