Inch

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INCH. From the Latin uncia. A measure of length, containing one-twelfth part of a foot.

References in periodicals archive ?
Powered by a 31-horsepower gasoline engine, the MV800 has a belt-driven, 2-lobe blower with maximum displacement of 543 cfm and maximum vacuum of 15 inches of mercury.
The Mega 2600 is typically paired with PP100XT DEEP powerpack providing additional suction power with the 23 inches of mercury DEEP blower for increased fluid management capabilities.
Both power plant options produce 15 inches of mercury.