The GenII range starts from a 2 dual tower machine to a 5 dual tower machine plus the wide 10 dual tower machine, ranging from 95% to 99.999% with flow rates from 2.7 (Nm³/h) to 132 (Nm³/h) depending on ppm and number of dual towers chosen. This range is the basic range without a reservoir or dryer, but can include options to add a dew point sensor to make sure the incoming air quality is to the required specification. Other options can be added such as external dryer and reservoir.