Pumps/Dispensers
American Instrument Exchange offers used and refurbished laboratory pumps and dispensers for sale, designed for precise fluid handling, liquid transfer, dosing, and vacuum applications in scientific, pharmaceutical, clinical, and industrial laboratory environments. Our inventory includes peristaltic pumps, vacuum pumps, diaphragm pumps, syringe pumps, bottle-top dispensers, and laboratory fluid handling systems from trusted manufacturers including Masterflex, Welch, KNF, Gilson, and Cole-Parmer.
Laboratories use pumps and dispensers for a wide range of applications including sample transfer, media dispensing, vacuum filtration, chromatography support, solvent handling, chemical dosing, and analytical instrumentation workflows. When selecting a laboratory pump or dispenser, buyers should consider flow rate range, chemical compatibility, vacuum performance, dispensing accuracy, tubing configuration, and compatibility with laboratory workflow requirements. Choosing the correct fluid handling equipment can improve process consistency, laboratory efficiency, and analytical reliability.
American Instrument Exchange has extensive experience refurbishing laboratory equipment, including fluid transfer systems, vacuum pumps, and laboratory dispensers. Our technicians inspect and test each unit to verify motor performance, vacuum integrity, flow control accuracy, controller functionality, and overall operational reliability prior to shipment. All pumps are cleaned, serviced, and evaluated to help ensure dependable performance upon installation at your facility.
Our inventory includes peristaltic pumps for gentle fluid transfer, vacuum pumps for filtration and evaporation applications, syringe pumps for controlled dispensing, and bottle-top dispensers for accurate reagent handling. These systems are commonly used in life science laboratories, pharmaceutical research facilities, biotechnology companies, chemical laboratories, environmental testing facilities, and industrial quality control environments.
Browse our selection of used laboratory pumps and dispensers for sale to find reliable fluid handling equipment at competitive prices. Specifications are provided to assist with laboratory planning, application compatibility, and installation requirements.
Watson Marlow 503S peristaltic
Watson Marlow 4181 PUMPWatson Marlow 503S peristaltic pump with standard variable speed drive Digital speed setting Reversing switch Flow rate .3 micro liter/min to 1700...
View full detailsWatson Marlow 505U peristaltic
Watson Marlow 4189D PUMPWatson Marlow 505U microprocessor control peristaltic pump with 501 RL head 220 RPM maximum speed 90-day warranty This pump is used and reconditi...
View full detailsWatson Marlow 604U pump
Watson Marlow 4186A PUMPWatson Marlow 604U peristaltic pump Maximum rotation speed: 165rpm Flow rate of up to 2.9 gpm 90-day warranty This pump is used and reconditione...
View full detailsWatson Marlow 701 S/R peristaltic pump
Watson Marlow 4186 PUMPWatson Marlow 701 S/R peristaltic pump The Watson Marlow 701 S/R peristaltic pump is a manual control high-flow pump designed for various applicati...
View full detailsWatson Marlow TPM peristaltic
Watson Marlow 4193B PUMPWatson Marlow TPM Pro peristaltic pump Variable speed to 220 rpm 5-line head 90-day warranty This pump is used and reconditioned. Our technicians...
View full detailsWheaton Unispense uP dispenser
Wheaton 1949C DISPENSEWheaton UniSpense uP Dispenser The Wheaton UniSpense uP Dispenser offers precise and efficient liquid dispensing using a reliable peristaltic pumpi...
View full detailsWM 313S Peristaltic Pump
Watson Marlow 4193FF PUMPWatson Marlow 313S peristaltic pump 90-day warranty The Watson Marlow 313S is fast-loading and easy to use with a flip-top design. It attach...
View full detailsAtlas Corpco Oil Free Scroll Air Compressor SF4FF
American Instrument Exchange 4150E PUMPAtlas Corpco Oil Free Scroll Air Compressor The Atlas Corpco Oil Free Scroll Air Compressor SF4FF is a high-performance, oil-free scroll compressor...
View full detailsThermo MultiDrop Combi Reagent Dispenser
Thermo 1947I DISPENSEThermo Scientific Multidrop Combi Reagent Dispenser - Type 836 Ideal for demanding pharmaceutical and biotech laboratories, this high-speed dispe...
View full detailsWatson Marlow 730UN process pump
Watson Marlow 4181C PUMPWatson Marlow 730UN process pump The Watson Marlow 730UN process pump has a max flow rate of 3300 L/h and a minimum flow rate of 0.12 L/h. This uni...
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