Features Acrylic Material: The casing of this water flow meter is made of transparent acrylic material, which is light and durable, suitable for long-term use and not easy to be damaged. Clear Scale: The scale printed on this liquid flow meter is clear and accurate, not easy to wear, and can read data clearly and intuitively, and is easy to use. Adjustment Knob: The panel water flow meter has a control knob, which can adjust the flow rate of the liquid medium, which is convenient and flexible to use. Excellent Performance: The industrial liquid flowmeter has a large measurement range, 0.3‑3GPM, with high measurement accuracy, measurement error less than 4%, accurate measurement and good reliability. Intimate Service: We provide 7-day worry-free return and exchange service for all customers. If you have any questions about our panel liquid flow meters, you are welcome to contact us and we will be happy to serve you. Specification: Item Type: Liquid flowmeter Material: Acrylic Applicable Medium: Liquid Type: Panel Type Measurement Range: 0.3-3GPM Interface Thread Specifications: Male thread 1/2in; female thread 1/4in Accuracy Class: 4% Application: It is mainly used to measure and control the flow rate of liquid medium. Package List: 1 x Liquid Flowmeter Note: Pay attention to correct operation Package List 1 x Liquid Flowmeter