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OM Series Flowmeter - OM040S511-221QPN
OM Series Flowmeter - OM040S511-221QPN
OM Series Flowmeter - OM040S511-221QPN
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OM Series Flowmeter - OM040S511-221QPN

Marsoni M251S
Sale price$2426.05
Pay 4 payments of $606.51 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
OM Series Flowmeter - OM040S511-221QPNOM Series Flowmeter OM040S511 221QPN FLOMEC OM Series Meters are an extremely versatile flowmeter which accurately measures high and low viscosity fluids. With no flow conditioning required and a small footprint, the OM040S511 221QPN flowmeter allows for compact installation. An accuracy of 0. 5% and 0. 03% repeatability regardless of viscosity changes make the OM Series a versatile meter. With a simple and reliable design concept using only two
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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.
  • To process your return/exchange, please contact us at [email protected]
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4.5 ★★★★★
Based on 426 reviews
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Product Reviews
A
Verified Purchase
Austin Williams
Houston, US
★★★★★ 5
Great bang for your buck!
Swapped out my old impeller and this helped fix my overheating issue. Super high quality, fit like a glove. If you know what you’re doing it’ll take you an hour tops. Super solid for the price! Fit into my 1990 alpha one gen 1 outdrive on my 4.3 Mercruiser.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 22, 2025
J
Verified Purchase
Jesse Simpson
Charlottesville, US
★★★★★ 4
Decent Kit
It's a pretty decent kit. Comes with all the lower unit options whether yours needs that particular part or not.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 22, 2025
E
Verified Purchase
Eli
Alexandria, US
★★★★★ 5
Alpha one gen I
Good fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2026
H
Verified Purchase
Hank
Massapequa, US
★★★★★ 5
Quality for the price
All necessary parts good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
A
Verified Purchase
Amazon Customer
Lake Worth, US
★★★★★ 5
quality
prefect fit, best pricing over local outlets wanting twice as much
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026

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