JB Industries DV-142N Platinum 5 CFM Vacuum Pump Platinum 5 CFM (142 l/m) vacuum pump - 1/2 HP, 1725 RPM capacitor start motor with thermal overload protection 1/2" x 1/4" x 3/8" intake port - Voltage 115 Hertz 60 - Standard US 110 Volt plug 21 ounce (680 cc) oil capacity - Gas ballast increases and keeps oil cleaner 2 stage direct drive to achieve deep 15 micron vacuum - Check valve prevents oil back flow during power failure Low profile rocker switch - Lift ring to hoist - Tethered safety cap prevents oil spills during transport