FM Instruments Polycarbonate Online Rotameters are precision flow measuring instruments designed for accurate monitoring of liquid and gas flow in industrial process applications. Polycarbonate rotameters are valued for their lightweight construction, durability, chemical resistance, and clear visibility. Widely used for water treatment plants, RO systems, chemical dosing units, and industrial utility applications.

Available in threaded, flanged, union, tri-clover, and panel mount configurations.