The Robinair 15115 has been performance tested to meet Robinair’s high standards. It features power and capacity for a wide range of service applications, and a high CFM rating for fast, thorough evacuation. Features: Oil Drain Valve – Positioned at the bottom of the oil reservoir and angled for faster, more complete draining; Oil Fill Port – Makes adding oil simple since the port is accessible from the front or either side. The sight glass on the front of the pump shows you when enough oil has been added; Heavy-Duty Motor – High torque design for easy startup and efficient operation; and a Die-Cast Aluminum Housing – Cast aluminum housings make the pumps lightweight but durable.