Cole Parmer 7524-00 Masterflex Microprocessor Pump Drive. (Inv #8517) Economical 10-100 rpm digital pump drive is infinitely adjustable to give flow rate from 0.6 to 2280ml/min, with the supplied L/S Standard pump head (Choose Below). Membrane keypad for easy programming. Display shows % speed, motor rpm, or flow rate. Drive also accepts Easy Load, Easy Load II, and Quick Load pump heads. .Power req. 115V 50/60Hz. Very good used condition, fully checked, cleaned, guaranteed. Price includes one pump head: $339.00. ***Choose pump head from current stock listed below.***

L/S Standard Pump Head 7013-20: 0.6 to 36 ml/min
L/S Standard Pump Head 7015-20: 17 to 1000 ml/min
L/S Standard Pump Head 7016-20: 8 to 480 ml/min
L/S Standard Pump Head 7018-20: 38 to 2280 ml/min

Cole Parmer Masterflex 7569-00 L/S Variable Speed Air Powered Pump Drive w/ 7015-20 L/S Standard Pump Head. (Inv # 7839) Air powered pump drive for locations where electrical power is unsafe or impractical. Remember: Careful grounding to protect from static electricity is vital for safe operation. Pump drive is rated for a flow range: 3.6 to 3400 mL/min. With the included 7015-20 pump head, flow rate is 100 to 1000ml/min. Includes regulator with 5-µm air filter and 1/4" NPT(F) connection, automatic lubricator, 0 to 30 psi pressure gauge, and muffler. Vary speed by adjusting air pressure with regulator. The 3/4-hp air motor requires little maintenance and generates less heat than an electric motor. Power req: Compressed air: 3 to 25 cfm @ 20 to 100 psi. Very good used condition, fully checked, cleaned, guaranteed. Price: $325.00

Cole Parmer 7524-00 Masterflex Microprocessor Pump Drive w/ L/S Standard Pump Head 7018-20. (Inv #8396) Economical digital pump drive is infinitely adjustable to give flow rate from 10 to 2300ml/min, with the supplied L/S Standard pump head. Membrane keypad for easy programming. Display shows % speed, motor rpm, or flow rate. Drive also accepts Easy Load, Easy Load II, and Quick Load pump heads. Power req. 115V 50/60Hz. Very good used condition, fully checked, cleaned, guaranteed. Price: $339.00

Ismatec MCP Quick Couple Programmable Drive w RS-232. Includes a 4-Channel Standard Cartridge Pump Head. (Inv #8527) Digital programmable interface allows for dispensing and metering by controlling time, volume, or flow parameters. RS-232 interface allows PC control of these functions for integration into your process. A special mode functions allows use of an optional diverter valve to dispense 2 liquids in the same batch. Foot or hand switch interface option. 4-cartridge pump head delivers from 0.01 to 177 ml/min per cartridge. Also included are a distribution barb set for a single source input that can be pumped to 4 separate processes. All painted stainless steel construction for long corrosion free use. Dim: (WxHxD) 6.13 x 10.25 x 8.7 in. Power req.:115/230V, 50/60Hz, 100W. Pictured with tubing installed for visual. Can be removed before shipping. Excellent used condition, fully checked, cleaned, guaranteed. Price: $1425.00