Vacuum Pump Oil for use with RAMVAC®, 1 Quart Available via UPS or FedEx Ground shipment only Mobil oil 1 - 15W50, fully synthetic Case of 6 "DentalEZ" and "RAMVAC" are registered trademarks of DentalEZ, Inc., and RAMVAC Dental Products, Inc. which are not affiliated with DCI and do not endorse this product.