SULLAIR'S S-energy series compressors of lubricated rotary screw air compressors are available in both constant speed and variable speed drive models, ranging from 15 to 100 HP with capacities of 44 to 500 acfm, and pressures from 100 to 175 psig. All models are available as a complete Performance Air System with optional integral Sullair SRS refrigerated dryers and filters for the most efficient removal of condensate and particulate.