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Precision King 7520 Series rotameter with 316L stainless steel parts, ±6% accuracy, for air flow up to 100 SCFH.
The King Instrument 7520 Series Rotameter is a precision variable area flowmeter designed for accurate and repeatable gas flow measurement, widely used in biotechnology and molecular diagnostics for process control and instrumentation.
This rotameter is critical in applications requiring precision gas flow measurement, such as molecular cloning workflows and live-cell imaging chambers, where stable and accurate flow parameters impact experimental integrity. The robust materials and precise machining make it a reliable component for integration in advanced biomedical engineering instrumentation setups.
Lab equipment markets are fragmented. Buyers spend weeks calling distributors, comparing quotes, and verifying supplier reliability. Sellers struggle to reach global research labs.
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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 44 with a price runs from €295 to €2,206.