We are offering oil free vacuum pump. Twin headed rocking piston max. Flow 5.2 cfm (146 lpm)max. Pressure 116 psi (8 bar)max. Vacuum 27hg (910 mbar)permanently lubricated bearingsoil-less, non-lubricated cup and cylinderlong-life cup designthin wall cylinder for good heat transferstainless-steel valvescapacitor as standardfield service abilitythermally protected motor.