Dual Flow Meter (DFM-3002)In addition to controlling the gas flow rate, the Dual Flow Meter is particularly suitable varying* the O2 concentrations when creating hypoxic culture conditions or where special pre mixed gases are expensive or unavailable. *Example 1: To obtain the gas concentrations of 2% O2, 5% CO2 and 93% N2 you will need to obtain 2 bottles of gases. One tank will be 5% CO2 & 95% O2, while the second tank should contain 5% CO2 & 95% N2. Attach the two tanks to