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There are several aspects that need to be checked while purchasing vacuum pumps. If you are looking online, make sure to check the specifications before clicking on the buy button. If you are going to purchase Edwards vacuum pumps online, then make sure that you go through the attributes so that you can make maximum benefits out of it. If you are thinking about the aspects that need to be checked while purchasing Edwards dry vacuum pumps , then below mentioned are the pointers that can certainly assist. Take a look: The first and most important aspect that you need to check is the reliability of the vacuum pump. You need to check if it comes with generous lubrication or not. If the moving parts of the device are properly lubricated, then only you must consider making your purchase. The next attribute that you need to check is whether it comes with an anti-suck back protection facility or not. If the dry vacuum pump has been integrated with an anti-suck back protection facility, then it