Operating vacuum degree: 0.04-0.05MPa(adjustable). Only unused, undamaged and original condition item can be qualified for a return.The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies. All of our products are CE approved. Please kindly check the copy of the certificate in the listing below. The item "Double Tank Electric Milking Machine For Farm Cows Vacuum Pump 110/220v" is in sale since Wednesday, November 1, 2017. This item is in the category "Business & Industrial\Agriculture & Forestry\Livestock Supplies\Cattle - Dairy". The seller is "topwholesale99" and is located in California. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.