OM Series Flowmeter - OM040A513-840M3

Marsoni

M251S

$2174.70

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

OM Series Flowmeter - OM040A513-840M3OM Series Flowmeter OM040A513 840M3 FLOMEC OM Series Mechanical Meters are an extremely versatile flowmeter which accurately measures high and low viscosity fluids. With no flow conditioning required and a small footprint, the OM040A513 840M3 flowmeter allows for compact installation. An accuracy of 1% and 0. 03% repeatability regardless of viscosity changes make the OM Series an extremely proficient and reliable flowmeter in any conditions. The OM

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Got this to replace cabin air filter on 2020 Honda Civic Sport, as it said it was a direct fit… It does fit but not perfectly! Holding it next to the filter you can see the size difference, with the original being slightly longer. I noticed a whistling sound from the AC at full blast right after install. I believe this noise is caused by the small gap left in the retainer box with the slightly smaller filter. Luckily it is not incredibly loud, but it’s still there. The quality of filtration seems to be much better than stock filter, but the fitment not exact for vehicles mentioned above.

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Reviewed in the United States on May 17, 2026

Verified Purchase

Bon43

San Leandro, US

★★★★★ 5

Awesome

Easy to install. Fit appropriately. Value for the money for sure.

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Reviewed in the United States on September 26, 2025