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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
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.

Original price $625.00 - Original price $625.00
Original price
$625.00
$625.00 - $625.00
Current price $625.00

Cole Parmer 74900 syringe

Cole Parmer
Low stock

Cole Parmer model 74900 syringe pump Single syringe infusion pump Reproducibility: +/- 0.1% Syringe size accepted: 10ul to 60mL 90 day warranty T...

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Original price $625.00 - Original price $625.00
Original price
$625.00
$625.00 - $625.00
Current price $625.00
Original price $675.00 - Original price $675.00
Original price
$675.00
$675.00 - $675.00
Current price $675.00

Cole Parmer Syringe Pump

Cole Parmer
Low stock

Cole Parmer Syringe Pump Comparable to KD Scientific model 100 Single syringe infusion pump Holds syringes from 10ul to 60ml 90-day warrant...

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Original price $675.00 - Original price $675.00
Original price
$675.00
$675.00 - $675.00
Current price $675.00
Original price $0.00 - Original price $0.00
Original price $0.00
$800.00
$800.00 - $800.00
Current price $800.00

Harvard 22 syringe infusion

Harvard Apparatus
Low stock

Harvard 22 infusion syringe pump Harvard Pump 22, model 55-2222 Infusion pump with standard 2-syringe rack 90-day warranty This is quite literall...

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Original price $0.00 - Original price $0.00
Original price $0.00
$800.00
$800.00 - $800.00
Current price $800.00
Original price $500.00 - Original price $500.00
Original price
$500.00
$500.00 - $500.00
Current price $500.00

Harvard 22 syringe pump

Harvard Apparatus
Low stock

Harvard 22 Basic multiple syringe pump with microprocessor control Standard 2-syringe rack Accuracy of +/- 0.35% 90-day warranty This is quite ...

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Original price $500.00 - Original price $500.00
Original price
$500.00
$500.00 - $500.00
Current price $500.00
Original price $750.00 - Original price $750.00
Original price
$750.00
$750.00 - $750.00
Current price $750.00

Harvard Apparatus 11 syringe

Harvard Apparatus
Low stock

Harvard Apparatus model 11 syringe pump Harvard Apparatus model 11 55-1111 Accepts two syringes from 0.5ul to 10ml Single syringe infusion/withdra...

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Original price $750.00 - Original price $750.00
Original price
$750.00
$750.00 - $750.00
Current price $750.00
Original price $1,350.00 - Original price $1,350.00
Original price
$1,350.00
$1,350.00 - $1,350.00
Current price $1,350.00

Harvard Apparatus 44, syringe

Harvard Apparatus
Low stock

Harvard Apparatus 44 programmable syringe pump Harvard Apparatus model 44 Single syringe infusion/withdrawal Power cord and manual included 90 day...

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Original price $1,350.00 - Original price $1,350.00
Original price
$1,350.00
$1,350.00 - $1,350.00
Current price $1,350.00
Original price $675.00 - Original price $675.00
Original price
$675.00
$675.00 - $675.00
Current price $675.00

Harvard Apparatus Multisyringe

Harvard Apparatus
Low stock

Harvard Apparatus 55-5920 multi-syringe Plus syringe pump Harvard Apparatus 55-5920 syringe pump Ten syringe infusion pump 90-day warranty Harva...

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Original price $675.00 - Original price $675.00
Original price
$675.00
$675.00 - $675.00
Current price $675.00
Original price $1,200.00 - Original price $1,200.00
Original price
$1,200.00
$1,200.00 - $1,200.00
Current price $1,200.00

Harvard Nanocool Injector

Harvard Apparatus
Low stock

Harvard Apparatus Nanocool Injector Syringe Pump 50ul to 500ul syringe capacity 367.4 pl/min max flow rate with 50ul syringe 1.906ml/min min f...

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Original price $1,200.00 - Original price $1,200.00
Original price
$1,200.00
$1,200.00 - $1,200.00
Current price $1,200.00
Original price $3,650.00 - Original price $3,650.00
Original price
$3,650.00
$3,650.00 - $3,650.00
Current price $3,650.00

Harvard PHD ULTRA

Harvard Apparatus
Low stock

Harvard Apparatus PHD ULTRA Syringe Pump The Harvard Apparatus PHD ULTRA Syringe Pump is the solution for your most demanding fluidics applications...

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Original price $3,650.00 - Original price $3,650.00
Original price
$3,650.00
$3,650.00 - $3,650.00
Current price $3,650.00
Original price $1,500.00 - Original price $1,500.00
Original price
$1,500.00
$1,500.00 - $1,500.00
Current price $1,500.00

KD Scientific 220 syringe pump

KD Scientific
Low stock

D Scientific model 220 syringe pump Multiple syringe infusion pump One to ten syringes, 10ul to 10ml each Power cord and manual included 90 day wa...

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Original price $1,500.00 - Original price $1,500.00
Original price
$1,500.00
$1,500.00 - $1,500.00
Current price $1,500.00
Original price $950.00 - Original price $950.00
Original price
$950.00
$950.00 - $950.00
Current price $950.00

KD200 syringe infusion pump

KD Scientific
Low stock

KD Scientific KD200 Syringe Pump Double (two) syringe infusion pump Holds syringes from 10ul to 140ml 90 day warranty There are reasons...

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Original price $950.00 - Original price $950.00
Original price
$950.00
$950.00 - $950.00
Current price $950.00
Original price $1,250.00 - Original price $1,250.00
Original price
$1,250.00
$1,250.00 - $1,250.00
Current price $1,250.00

Orion Sage 362 Syringe Pump

Sage
Low stock

Orion ATI Sage model 362 syringe pump 0 - 100 mL/min Infusion and withdrawal modes 90-day warranty Rugged, user-friendly Sage pumps are used to i...

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Original price $1,250.00 - Original price $1,250.00
Original price
$1,250.00
$1,250.00 - $1,250.00
Current price $1,250.00