LM Series 3:1 (2" Air Motor) are built with a strong, portable, modern design with 50% lesser components for piston pump function, with a solid, durable housing for enhanced reliability and functionality. This motor operates at minimal service time even without special tools for pump in-line (3:1 pumps). LM Series 3:1 (2" Air Motor) are suitable for pumping various liquids such as gear and motor oil, and transmission fluid.