The Palatek DG-Series rotary screw air compressor is the complete compressor solution. Complete package with starter, air cooled oil cooler/ after cooler and protective devices for high temperature and low oil shut down. EXTENDED LIFE: Mounted desiccant dryer to eliminate moisture and contaminants. -40 degrees F Dew Point. In line filter. 25, 30, 40, 50 HP Direct Gear Drive.