Price on request
In stock
Can't find what you're looking for?
King 7511 Series acrylic block rotameter with 5" scale, ±3% full-scale accuracy, 4.2 SCFM air capacity, 1/2" NPT connection.
The King 7511 Series Rotameter is a precision variable area flow meter designed for accurate measurement of airflow in laboratory and bioprocessing applications. It features a durable acrylic block construction with a 5" (127 mm) direct reading scale and white screen-printed backs that enhance scale visibility and readability during operation.
Key technical specifications include:
This rotameter is widely utilized in biotechnology fields such as bioprocessing and molecular diagnostics, where precise airflow measurement is critical in applications like cell culture aeration and biomanufacturing process control. The direct reading scale supports quick, reliable monitoring and adjustment of air flow rates, making it essential for workflows involving synthetic biology and gene editing. Its robust design ensures dependable performance in clinical diagnostics and research laboratories focused on fluorescence analysis and live-cell imaging protocols.
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 172 with a price runs from €348 to €1,013.
