[Plastic Material]: Made of plastic, used for testing the instantaneous liquid [Measure Range]: Measure range is 60-600L/H [Good Resistance]: The meter float is made of plastic shell, so it has good resistance to acid and alkali corrosion resistance [Stable Performance]: This Meter features stable performance, clear scale line, and its measuring accuracy is 4% [Application]: Water rotameter mainly used in chemical, petroleum, light industry, medicine, chemical departments, Weight: 0.3086471668 Pounds, Manufacturer: Walfront