dew point heatless desiccant air dryer. Twin drying tanks rated for 120 psi maximum pressure, 50 psi minimum pressure. Working temperature range is 150 degrees Fmax, 80degrees F min. Each tank holds 200 lbs. of desiccant. Operates on 115 vac, single phase 60 Hz. Working temperature range is 150 degrees Fmax, 80degrees F, min Operates on 115 vac, single phase 60 Hz