Gentec flowmeters have a 0-15 LPM flow range, with a minimum of 65 LPM flush flow rate. The base models are available in either nickel plated solid brass or aluminum. They are made of durable polycarbonate hood and metering tube and have a stainless steel ball float. The flowmeters are all calibrated at 50 psig and 70° F and are all back-pressured compensated. The unit is color-coded for air and oxygen. An MRI unit is optional and dual flowmeters are available as are ISO flowmeters for air/oxygen. All units have a 5-year warranty.