This high-quality LZT M-15 water flow meter is an essential tool for accurately measuring and monitoring water flow rates in a variety of industrial and commercial applications. Featuring an adjustable knob and panel type design, this flowmeter is easy to install and use, providing reliable and precise flow rate readings between 0.5-5GPM (2-18LPM). Ideal for use in hydraulics, pneumatics, pumps, and plumbing systems, this GPM flow meter is perfect for businesses and industries in need of precise and efficient flow rate monitoring. Whether you're measuring water flow rates in a commercial setting or monitoring fluid flow in an industrial system, this flow meter is a must-have tool for any professional.