A quality American made product that works very well. I could easily pull the vacuum past 40 inches. There is an exhaust valve that I initially had a problem with. It was damaged in transit. However, I was able to straighten the valve slightly so it seals well. Had I not been able to fix it, a replacement valve, which essentially resembles a valve stem from a tire, is readily available, as are many other replacement parts for this vacuum pump. Before purchasing the Lisle 75000 I tried a number of other vacuum pumps on the market and none came close to Lisle's quality. I highly recommend this product.
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