Offering manually operated standalone solution for simple calibration applications, EcoFlex™ can use any Trace Source™ liquid source permeation or diffusion tube to give concentrations from low ppb to over 100 ppm. Up to 8 disposable tubes can be used simultaneously, or system can support one LFH refillable, high-rate tube. With calibration mixtures delivered at up to 40 psig, EcoFlex enables temperature set point to be adjusted in 0.1°C increments and flow to be set in increments of 10 cc/min.