Features using: panel meter with valve also belongs rotor or rotameter, measuring tube selection transparent plexiglass. Mainly used in water treatment and environmental engineering equipment support, can also be used for the chemical sector, petroleum, light industry, medicine, fertilizer, food, paper and scientific research for liquid single-phase non-pulsating flow measurement. Quantities of glass rotameter, rotameter direct factory price! In front of the meter is calibrated display, behind the screws can be fixed on the panel, interface thread import and export are: 6 push connection, thread interface, hose connections. [Features]: Installation is simple, intuitive readings, there are upper and lower interfaces. Behind the threaded connection, convenient and fast. Can measure liquids and gases. Beautiful appearance, light weight, unbreakable, long life, long-distance transport.