The Yellow Jacket 93780 SuperEvac PLUS II 1/2 hp 8 CFM Two-Stage Vacuum Pump incorporates a Brushless DC (BLDC) motor that provides key advantages over existing AC technology vacuum pumps. High torque and high efficiency define the ultimate performance in the most reliable vacuum pump. Able to function in extreme low voltage conditions and field rated to 15 microns, the SuperEvac PLUS II is always ready. The easy-to-carry, lightweight design is rated to 8 cfm.