Good, Working 6 RPM Cole Parmer 77120-52 Pump Masterflex C/L Drive with Power Supply.

DescriptionThe Masterflex C/L pumps are compact (1⁄4 DIN) and perfect for low-flow OEM use or analyzer applications. These easy-to-use, economical pumps feature reversible pumping, remote control capabilities, and rapid tubing changes. Ideal for consistent fluid delivery in chromatography, spectroscopy, and dispensing applications. These pumps feature self-priming which withstands minor back pressure.

Maximum suction lift of 5 ft (1.5 m); max discharge head of 20 ft (6.1 m); max pressure 15 psi (1.0 bar). Self-priming pumps withstand minor back pressure. One- or two-channel pumping in either direction—reversible permanent magnet DC motor. Separate 1-turn speed control and CW/OFF/CCW switch with green LED power indicator—maintain speed setting when you turn pump on/off or reverse direction. ”Max” button runs pump at 100% of maximum rpm—use to prime or to rapidly flush tubing.

Remote start/stop control available using contact closure connection on back of the pump. Pumps accept continuous lengths of microbore tubing for a clean, uninterrupted flow path with no fittings. Deliver flow rates from 0.02 to 12.3 mL/min per channel with a wide range of microbore tubing sizes.