Fitzer instruments [india] pvt ltd is engaged in manufacturing a wide range of pressure, flow and level measuring instruments. These instruments have wide application in mining, petrochemicals, refineries, government calibration laboratories & engineering institutions etc. As part of that, the company offers small glass tube rotameter. This small glass tube rotameter is specially designed and developed for purging or for low flow range measurement. This is provided with flow control valve and d.P. Regulator.