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LAB EQUIPMENT REPAIRS, INCLUDING ULTRALOW FREEZERS, FRIDGES, CENTRIFUGES AND MORE - Click here for details
LAB EQUIPMENT REPAIRS, INCLUDING ULTRALOW FREEZERS, FRIDGES, CENTRIFUGES AND MORE - Click here for details
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Pumps/Dispensers

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.

Thermo Scientific Multidrop Combi nL
Thermo Scientific Multidrop Combi nL
$18,500.00 - $18,500.00
$18,500.00
$18,500.00 - $18,500.00
$18,500.00

Thermo MultiDrop Combi nL - Type 838

Thermo
In stock

Thermo Scientific Multidrop Combi nL Reagent Dispenser - Type 838 The Thermo Scientific Multidrop Combi nL Reagent Dispenser offers reliable and ea...

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$18,500.00 - $18,500.00
$18,500.00
$18,500.00 - $18,500.00
$18,500.00
Cole-Parmer Masterflex L/S Digital Miniflex
Cole-Parmer Masterflex L/S Digital Miniflex
$1,100.00 - $1,100.00
$1,100.00
$1,100.00 - $1,100.00
$1,100.00

Cole Parmer L/S Digital Miniflex Pump

Cole Parmer
Low stock

Cole Parmer Masterflex L/S Digital Miniflex Pump System The Cole-Parmer Masterflex L/S Digital Miniflex Pump System delivers accurate low flow rate...

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$1,100.00 - $1,100.00
$1,100.00
$1,100.00 - $1,100.00
$1,100.00
Cole Parmer Masterflex pump
Cole Parmer Masterflex pump
$1,200.00 - $1,200.00
$1,200.00
$1,200.00 - $1,200.00
$1,200.00

Cole Parmer Masterflex pump

Cole Parmer
Low stock

Cole Parmer Masterflex peristaltic pump system The Cole Parmer Masterflex pump 7557-14 controller has a speed range from 10 – 100rpm with speed con...

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$1,200.00 - $1,200.00
$1,200.00
$1,200.00 - $1,200.00
$1,200.00
$850.00 - $850.00
$850.00
$850.00 - $850.00
$850.00

Heidolph 5206 pump drive

Heidolph
Low stock

Heidolph Pumpdrive 5206 Peristaltic Pump 24-600 rpm Flow rate of 1.3 to 3.9mL/min Microprocessor-controlled drive 90 day warranty The ...

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$850.00 - $850.00
$850.00
$850.00 - $850.00
$850.00
$450.00 - $450.00
$450.00
$450.00 - $450.00
$450.00

Master flex 7540-30 Peristatic

MasterFlex
Low stock

Cole Parmer Masterflex L/S Fixed-Speed Drive Model HV-07540-30 Comes w/ pump head 7024-20 Fixed-speed: 30 rpm 90-day warranty The Masterflex L/S ...

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$450.00 - $450.00
$450.00
$450.00 - $450.00
$450.00
$1,550.00 - $1,550.00
$1,550.00
$1,550.00 - $1,550.00
$1,550.00

Thermo FH100x pump

Thermo
Low stock

Thermo Scientific Peristaltic Pump Model FH100x Digital display w/ membrane keypad 90-day warranty The Thermo Scientific FH family of ...

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$1,550.00 - $1,550.00
$1,550.00
$1,550.00 - $1,550.00
$1,550.00
$1,475.00 - $1,475.00
$1,475.00
$1,475.00 - $1,475.00
$1,475.00

Watson Marlow 6025 peristaltic pump

Watson Marlow
Low stock

Watson Marlow 6025 Tested Cleaned/decontaminated 90-day warranty Most of our equipment is used and reconditioned. Our technicians test all equipm...

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$1,475.00 - $1,475.00
$1,475.00
$1,475.00 - $1,475.00
$1,475.00
$3,300.00 - $3,300.00
$3,300.00
$3,300.00 - $3,300.00
$3,300.00

Watson Marlow 620DUN peristaltic pump

Watson Marlow
Low stock

Watson Marlow 620DUN peristaltic pump The Watson Marlow 620DUN features a quick and easy tube-change procedure which means that one pump can perfor...

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$3,300.00 - $3,300.00
$3,300.00
$3,300.00 - $3,300.00
$3,300.00
$3,300.00 - $3,300.00
$3,300.00
$3,300.00 - $3,300.00
$3,300.00

Watson Marlow 620SN peristaltic pump

Watson Marlow
Low stock

Watson Marlow 620SN peristaltic pump The Watson Marlow 620SN features a quick and easy tube-change procedure which means that one pump can perform ...

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$3,300.00 - $3,300.00
$3,300.00
$3,300.00 - $3,300.00
$3,300.00
$2,800.00 - $2,800.00
$2,800.00
$2,800.00 - $2,800.00
$2,800.00

Watson Marlow 6242 Pump

Watson Marlow
Low stock

Watson Marlow 624S peristaltic pump Flow rates 0.1L/min to 10.4L/min Reversible flow operation 90-day warranty Most of our equipment ...

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$2,800.00 - $2,800.00
$2,800.00
$2,800.00 - $2,800.00
$2,800.00
$2,700.00 - $2,700.00
$2,700.00
$2,700.00 - $2,700.00
$2,700.00

Watson Marlow 624Di IP55 washdown peristaltic pump

Watson Marlow
Low stock

Watson Marlow 624Di peristaltic pump The Watson Marlow 624Di IP55 washdown peristaltic pump is an accurate high volume peristaltic pump suitable fo...

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$2,700.00 - $2,700.00
$2,700.00
$2,700.00 - $2,700.00
$2,700.00
$2,500.00 - $2,500.00
$2,500.00
$2,500.00 - $2,500.00
$2,500.00

Watson Marlow 624U, IP55 pump

Watson Marlow
Low stock

Watson Marlow 624U peristaltic pump Flow rates 0.15L/min to 11.9L/min Manual or automatic operation options Includes high capacity Loadsure head ...

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$2,500.00 - $2,500.00
$2,500.00
$2,500.00 - $2,500.00
$2,500.00
$3,500.00 - $3,500.00
$3,500.00
$3,500.00 - $3,500.00
$3,500.00

Watson Marlow 720SN/RE peristaltic pump

Watson Marlow
Low stock

Watson Marlow 720SN/RE peristaltic pump Speed range 0.1 to 360rpm Flow rate up to 66.6L/17.6gpm Manual keypad control Maintenance-free brushless ...

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$3,500.00 - $3,500.00
$3,500.00
$3,500.00 - $3,500.00
$3,500.00
$0.00 - $0.00
$0.00
$0.00 - $0.00
$0.00

Amicon LP1 peristaltic pump

Amicon
Low stock

Amicon LP1 Bi-Directional Peristaltic Pump 7015-21 head 115V, 50/60 Hz 90-day warranty This pump is used and reconditioned. Our technicians test ...

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$0.00 - $0.00
$0.00
$0.00 - $0.00
$0.00
$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00

Aro Diaphram pump

Aro
Low stock

Aro Diaphram Pump 100 psi max 90-day warranty This pump is used and reconditioned. Our technicians test all equipment to confirm that it operates...

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$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00

BioRad 170-3644 variable speed

Biorad
Low stock

BioRad 170-3644 variable speed pump 90-day warranty The BioRad 170-3644 variable speed pump is used to facilitate electrophoresis processes in th...

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$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00
$325.00 - $325.00
$325.00
$325.00 - $325.00
$325.00

BioRad Buffer Pump 170-2929

Biorad
Low stock

BioRad Buffer Recirculation Pump Catalog number 170-2929 Variable speed 90-day warranty The BioRad Buffer Recirculation Pump is a unidirectional ...

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$325.00 - $325.00
$325.00
$325.00 - $325.00
$325.00
$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00

BioRad variable speed pump

Biorad
Low stock

BioRad variable speed pump 90-day warranty Most of our equipment is used and reconditioned. Our technicians test all equipment to confirm that i...

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$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00
Buchi B-688 Liquid Chromatography Pump
$1,200.00 - $1,200.00
$1,200.00
$1,200.00 - $1,200.00
$1,200.00

Buchi B-688 chromatography

Buchi
Low stock

Buchi B-688 Liquid Chromatography Pump  The Buchi B-688 Liquid Chromatography Pump is used and reconditioned. Buchi B-688 - Specifications Medium ...

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$1,200.00 - $1,200.00
$1,200.00
$1,200.00 - $1,200.00
$1,200.00
$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00

C-P 7520-10 drive

Cole Parmer
Low stock

Cole Parmer model 7520-10 Pump Drive 90-day warranty Most of our equipment is used and reconditioned. Our technicians test all equipment...

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$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00
$425.00 - $425.00
$425.00
$425.00 - $425.00
$425.00

C-P 7524-10

Cole Parmer
Low stock

Cole Parmer model 7524-10 90-day warranty Most of our equipment is used and reconditioned. Our technicians test all equipment to confir...

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$425.00 - $425.00
$425.00
$425.00 - $425.00
$425.00
$2,075.00 - $2,075.00
$2,075.00
$2,075.00 - $2,075.00
$2,075.00

C/P77411-00 Peristaltic Pump

Cole Parmer
Low stock

Cole Parmer 77411-00 peristaltic pump Model 77411-00 Flow rate: 0.2L to 17L per minute 90 day warranty The Cole-Parmer Masterflex 77411-00 perist...

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$2,075.00 - $2,075.00
$2,075.00
$2,075.00 - $2,075.00
$2,075.00
Photos of the PSS00021 Plate Stacker coming soon
$400.00 - $400.00
$400.00
$400.00 - $400.00
$400.00

CCS Packard Plate Stacker

CCS Packard
Low stock

CCS Packard Plate Stacker The CCS Packard Plate Stacker Model PSS00021 automates the handling of microplates and tip boxes, improving lab efficienc...

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$400.00 - $400.00
$400.00
$400.00 - $400.00
$400.00
$0.00 - $0.00
$0.00
$0.00 - $0.00
$0.00

Cole Parmer 07019 pump head

Cole Parmer
Low stock

Cole Parmer 07019 high-capacity pump head 90-day warranty This pump head is used and reconditioned. Our technicians test all equipment to confirm...

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$0.00 - $0.00
$0.00
$0.00 - $0.00
$0.00