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The H2FLOW CONTROLS fv-3-l is a precision flow meter designed for gray water and potable water applications. Built around a patented internal design, it delivers accurate, reliable flow measurement without requiring straight-pipe run clearances before or after installation. At 3 inches, it fits standard 3-inch plumbing lines and is suited for residential and commercial systems where dependable flow monitoring is critical. Licensed plumbers and water system technicians are the primary installers of this meter.
The fv-3-l is used in potable water supply lines, gray water systems, pool and spa plumbing, irrigation distribution, and other water-handling applications where accurate flow data is needed. Its flexible installation orientation makes it practical in tight mechanical rooms and retrofit situations where pipe routing does not allow for traditional flow meter placement requirements.
Designed for use in 3-inch plumbing systems handling gray water or potable water, including pool, spa, irrigation, and general water distribution applications.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off water supply and relieve line pressure completely before cutting into any existing piping. Verify flow direction markings on the meter body align with system flow before securing fittings. Do not exceed the rated pressure and temperature range for the meter during operation.
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