QM40 Mechanical Flow Meter

Marsoni

M251S

$324.50

Get it in 3 business days with 1 day shipping. Friday, May 29

QM40 Mechanical Flow MeterThe GPRO QM40 Series Fuel meter is a strong, accurate, and reliable oval gear flow meter capable of handling the toughest conditions. Frictionless mag drive means no seals and no internal leaks. The GPRO QM40 Mechanical Fuel Meter provides precision fuel measurements for more accurate readings for fleet operations, heavy equipment, and agricultural applications. It features a magnetic drive mechanism that is nearly frictionless; less friction results

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Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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The quality of the outlet is good. Functions perfectly has two Usb 2.0 ports and one Usb C port. Charges as normal chargers do. It is easy to use and worth the cost. The tapes for the clips doesn’t work on cement walls so I recommend using the https://amzn.to/4hoc2Qe with what I always use to adhere to cement walls.

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Reviewed in the United States on October 19, 2025

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SteveG

Pawtucket, US

★★★★★ 5

Great product that meets a specific need

Size: 3 FT

This is a unique product that works as advertised. It met a specific need. Very happy with it. Ordered a second one!

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Reviewed in the United States on February 9, 2026

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