flushometer

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flush·om·e·ter

 (flŭsh-ŏm′ĭ-tər)
n.
A water-saving device for flushing toilets and urinals that uses pressure from the water supply system rather than the force of gravity to discharge water into the bowl.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
Models that flush at 1.28 gpf or less for flushometer valve toilets, per EPA's draft specification, and 0.5 gpf or less for WaterSense-labeled urinals could save significant volumes."