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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 $225.00 - Original price $225.00
Original price
$225.00
$225.00 - $225.00
Current price $225.00

Millipore XX80-200-00

Millipore
Low stock

Millipore XX80-200-00 peristaltic pump 80-100 ml/minute 90-day warranty This Millipore XX80-200-00 peristaltic pump is used and reconditioned. Ou...

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Original price $225.00 - Original price $225.00
Original price
$225.00
$225.00 - $225.00
Current price $225.00
Original price $295.00 - Original price $295.00
Original price
$295.00
$295.00 - $295.00
Current price $295.00

Millipore XX8020E pump

Millipore
Low stock

Millipore xx8020E fixed pump with head 90-day warranty This pump is used and reconditioned. Our technicians test all equipment to confirm that it...

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Original price $295.00 - Original price $295.00
Original price
$295.00
$295.00 - $295.00
Current price $295.00
Original price $425.00 - Original price $425.00
Original price
$425.00
$425.00 - $425.00
Current price $425.00

Millipore XX81N000 peristaltic

Millipore
Low stock

Millipore Model XX81N000 peristaltic pump with head 90-day warranty This Millipore XX81N000 peristaltic pump is used and reconditioned. Our techn...

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Original price $425.00 - Original price $425.00
Original price
$425.00
$425.00 - $425.00
Current price $425.00
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
Original price $300.00 - Original price $300.00
Original price
$300.00
$300.00 - $300.00
Current price $300.00

P & I Mdl 4 infusion pump

Process & Instruments Corp.
Low stock

Process & Instruments Corp Model 4 adjustable infusion pump 90-day warranty This infusion pump is used and reconditioned. Our technicians tes...

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Original price $300.00 - Original price $300.00
Original price
$300.00
$300.00 - $300.00
Current price $300.00
Original price $3,000.00 - Original price $3,000.00
Original price
$3,000.00
$3,000.00 - $3,000.00
Current price $3,000.00

Perkin Elmer MultProbe II Plus

Perkin Elmer
Low stock

Perkin Elmer MultiPROBE II Plus HT EX The Perkin Elmer MultiPROBE II Plus HT EX is a robotic liquid handling system designed to automate sample pre...

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Original price $3,000.00 - Original price $3,000.00
Original price
$3,000.00
$3,000.00 - $3,000.00
Current price $3,000.00
Original price $375.00 - Original price $375.00
Original price
$375.00
$375.00 - $375.00
Current price $375.00

PFC Inc G1201T/W pump

PFC
Low stock

Prominent Fluid Controls, Inc., Model G1201T with pump 90-day warranty This pump is used and reconditioned. Our technicians test all equipment to...

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Original price $375.00 - Original price $375.00
Original price
$375.00
$375.00 - $375.00
Current price $375.00
Original price $600.00 - Original price $600.00
Original price
$600.00
$600.00 - $600.00
Current price $600.00

Pulsafeeder 340 metering pump

Pulsafeeder
Low stock

Pulsafeeder 340 diaphragm pump Flow up to 11.5 gph (43.5 lph) Pressure up to 175 psi (12 bar) Temperature from 4.4°C to 82°C 90-day warranty The ...

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Original price $600.00 - Original price $600.00
Original price
$600.00
$600.00 - $600.00
Current price $600.00
Original price $350.00 - Original price $350.00
Original price
$350.00
$350.00 - $350.00
Current price $350.00

Robbins AP Wash Module Pump

Robbins
Low stock

Robbins AP Wash module peristaltic pump, dual heads 90-day warranty Most of our equipment is used and reconditioned. Our technicians test all eq...

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Original price $350.00 - Original price $350.00
Original price
$350.00
$350.00 - $350.00
Current price $350.00
Original price $440.00 - Original price $440.00
Original price
$440.00
$440.00 - $440.00
Current price $440.00

Scilog Accu metering pump

SciLog
Low stock

SciLog Accu Series Pump The SciLog Accu Series Pump is a high precision, continuous duty, variable speed metering pump with piston Fluid Metering S...

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Original price $440.00 - Original price $440.00
Original price
$440.00
$440.00 - $440.00
Current price $440.00
Original price $850.00 - Original price $850.00
Original price
$850.00
$850.00 - $850.00
Current price $850.00

Scilog FM420 metering pump

Scilog
Low stock

Scilog Expert FM 420 Piston Metering Pump The Scilog Expert FM 420 Piston Metering Pump is a microprocessor-controlled pump designed for various ap...

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Original price $850.00 - Original price $850.00
Original price
$850.00
$850.00 - $850.00
Current price $850.00
Original price $575.00 - Original price $575.00
Original price
$575.00
$575.00 - $575.00
Current price $575.00

Spectra/Chrom MP-2 peristaltic

Spectrum/Chrom
Low stock

Spectrum/Spectra/Chrom Model MP-2 peristaltic pump 600 rpm 90-day warranty This peristaltic pump is used and reconditioned. Our technicians test ...

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Original price $575.00 - Original price $575.00
Original price
$575.00
$575.00 - $575.00
Current price $575.00
Original price $1,025.00 - Original price $1,025.00
Original price
$1,025.00
$1,025.00 - $1,025.00
Current price $1,025.00

Thermo Fisher 850-3002 pump

Thermo
Low stock

Thermo/Cole Parmer 850-3002 peristaltic pump Model 850-3002 Includes 77201-62 EZ Load pump head Speed range: 10rpm to 600rpm 90-day warranty ...

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Original price $1,025.00 - Original price $1,025.00
Original price
$1,025.00
$1,025.00 - $1,025.00
Current price $1,025.00
Original price $75.00 - Original price $75.00
Original price
$75.00
$75.00 - $75.00
Current price $75.00

VWR mini pump

VWR
Low stock

VWR Variable Flow Mini-Pump Variable flow control Flow rates from 0.03 to 8.20 ml/min 90-day warranty Variable flow Mini-Pump is a bi...

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Original price $75.00 - Original price $75.00
Original price
$75.00
$75.00 - $75.00
Current price $75.00
Original price $275.00 - Original price $275.00
Original price
$275.00
$275.00 - $275.00
Current price $275.00

Watson Marlow 101 F/R pump

Watson Marlow
Low stock

Watson Marlow 101F/R fixed speed peristaltic pump with head 24 RPM 90-day warranty The 100 series is Watson-Marlow's low-flow single-channel rang...

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Original price $275.00 - Original price $275.00
Original price
$275.00
$275.00 - $275.00
Current price $275.00
Original price $450.00 - Original price $450.00
Original price
$450.00
$450.00 - $450.00
Current price $450.00

Watson Marlow 302 peristaltic

Watson Marlow
Low stock

Watson Marlow Model 302 Peristaltic Pump 90-day warranty Most of our equipment is used and reconditioned. Our technicians test all equipment to ...

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Original price $450.00 - Original price $450.00
Original price
$450.00
$450.00 - $450.00
Current price $450.00
Original price $495.00 - Original price $495.00
Original price
$495.00
$495.00 - $495.00
Current price $495.00

Watson Marlow 313f Peristallti

Watson Marlow
Low stock

Watson Marlow Model 313f Peristaltic Pump 90-day warranty Most of our equipment is used and reconditioned. Our technicians test all equipmen...

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Original price $495.00 - Original price $495.00
Original price
$495.00
$495.00 - $495.00
Current price $495.00
Original price $940.00 - Original price $940.00
Original price
$940.00
$940.00 - $940.00
Current price $940.00

Watson Marlow 501U peristaltic

Watson Marlow
Low stock

Watson Marlow 501U pump with 501 RL head Maximum speed: 200 rpm 90-day warranty This pump is used and reconditioned. Our technicians test all equ...

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Original price $940.00 - Original price $940.00
Original price
$940.00
$940.00 - $940.00
Current price $940.00
Original price $575.00 - Original price $575.00
Original price
$575.00
$575.00 - $575.00
Current price $575.00

Watson Marlow 502 UK pump

Watson Marlow
Low stock

Watson Marlow 502 UK pump 90-day warranty This pump is used and reconditioned. Our technicians test all equipment to confirm that it operates pro...

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Original price $575.00 - Original price $575.00
Original price
$575.00
$575.00 - $575.00
Current price $575.00
Original price $450.00 - Original price $450.00
Original price
$450.00
$450.00 - $450.00
Current price $450.00

Watson Marlow 502AA pump head

Watson Marlow
In stock

Watson Marlow 502AA 10 channel pump 90-day warranty Most of our equipment is used and reconditioned. Our technicians test all equipment to confi...

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Original price $450.00 - Original price $450.00
Original price
$450.00
$450.00 - $450.00
Current price $450.00
Original price $575.00 - Original price $575.00
Original price
$575.00
$575.00 - $575.00
Current price $575.00

Watson Marlow 502S peristaltic

Watson Marlow
Low stock

Watson Marlow 502S peristaltic pump with 501RL pump head Speed: up to 170 rpm Maximum flow rate: 1.8 L/ min 90-day warranty The self-priming per...

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Original price $575.00 - Original price $575.00
Original price
$575.00
$575.00 - $575.00
Current price $575.00
Original price $750.00 - Original price $750.00
Original price
$750.00
$750.00 - $750.00
Current price $750.00

Watson Marlow 503S peristaltic

Watson Marlow
In stock

Watson Marlow 503S peristaltic pump with standard variable speed drive Digital speed setting Reversing switch Flow rate .3 micro liter/min to 1700...

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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 $1,375.00 - Original price $1,375.00
Original price
$1,375.00
$1,375.00 - $1,375.00
Current price $1,375.00

Watson Marlow 505U peristaltic

Watson Marlow
Low stock

Watson Marlow 505U microprocessor control peristaltic pump with 501 RL head 220 RPM maximum speed 90-day warranty This pump is used and reconditi...

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Original price $1,375.00 - Original price $1,375.00
Original price
$1,375.00
$1,375.00 - $1,375.00
Current price $1,375.00
Original price $1,990.00 - Original price $1,990.00
Original price
$1,990.00
$1,990.00 - $1,990.00
Current price $1,990.00

Watson Marlow 604U pump

Watson Marlow
Low stock

Watson 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...

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Original price $1,990.00 - Original price $1,990.00
Original price
$1,990.00
$1,990.00 - $1,990.00
Current price $1,990.00