Series 660/680 WOB-L piston air pumps provide long life, high efficiency, and low noise and vibration. Oil-less pistons and cylinders and efficient intake filters ensure non-contaminated air flow. They come with stainless steel valves, hard-coated aluminum cylinders, and permanently lubricated bearings. Single-phase ac motors have a permanent split capacitor design to eliminate need for a starting switch. They provide up to 28.5 in. Hg vacuum or 45 psi pressure and maximum flow to 2.37 cfm.

Thomas Products Div., a Gardner Denver Co., (920) 457-4891, www.gardnerdenver.com