pompa303Applications. The GRI 15000303 operates best in applications where replenishing, transfer and circulation of fluid is concerned. Specific applications in which the pump is ideal for includeBrowse Item # VC 303, Oil Lubricated Vane Vacuum Pump in the Compressed Air Systems, Inc. catalog including Item #,Item Name,Approve Payments,Dimension a at 50 Hz,Dimension a at 60 Hz,Dimension a1 at 50