Operating Vacuum Degree :0.04-0.05MPa (adjustable). You pay us what you see on the invoice, i. Or replace item for you free of charge. We will reply to you within 48 hours. Please kindly wait for us.The item "25L Low noise Electric Milking Machine For Cows +Portable Bucket+ Accessories" is in sale since Monday, October 18, 2021. This item is in the category "Business & Industrial\Agriculture & Forestry\Livestock Supplies\Dairy Cattle". The seller is "perfectshop999" and is located in Ontario, California. This item can be shipped to United States.