Chicago Pneumatic QRS7.5HPD-1 Rotary Screw Air Compressor with Dryer (1 Phase) comes complete with tank mount, quiet enclosure, low oil level shutdown, start/stop control plus a built in refrigerated air dryer for clean, dry, pulsation free air. There are no wearing parts, the CP QRS offers increased reliability, reduced maintenance and trouble-free operation. No need to worry about rings, valves, rod inserts, bushings and pistons. Extended service intervals save time and money. Convent service panel with easy access to internal components.