Price on request
In stock
Can't find what you're looking for?
Used, in good condition
Efficient fluid transfer pump with precise flow control, ideal for various tubing sizes.
The Cole-Parmer Easy-Load Masterflex Pump Drive, model 7544-20, operates at a speed of 20 rpm, offering precise and efficient fluid transfer. Constructed with a polysulfone housing and cold-rolled steel rotor and rollers, this pump ensures durability and reliability. It features an average, fixed occlusion and can accommodate a variety of tubing, including L/S 13, L/S 14, L/S 16, L/S 25, L/S 17, and L/S 18. The flow rate varies based on tubing selection, with a minimum of 0.06 mL/min at 1 rpm using L/S 13 tubing, and a maximum of 2300 mL/min at 600 rpm using L/S 18 tubing. This versatile pump is ideal for laboratory use where precise fluid control is essential.
Lab equipment markets are fragmented. Buyers spend weeks calling distributors, comparing quotes, and verifying supplier reliability. Sellers struggle to reach global research labs.
We built Questpair to fix this. Every supplier on the platform is verified before listing. Every quote you receive comes from a real, vetted seller. AI prepares your case in minutes, then a real specialist takes over.
We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.
With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
Yes. Every verified supplier states which service partners cover the instrument, and we list that alongside the offer.
Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.
Two to six weeks, depending on refurbishment scope and whether calibration is included.
We ship to 38 countries. Crating and customs handling are quoted with the instrument.
Tell us what you need and a scientist finds it for you, usually within the hour.
Last updated 19 October 2026
The middle half of the 367 with a price runs from €600 to €5,361.