I wanted something with a higher upgrade than what I was using and see in the Box Stores. I paid a few dollars more and have tested it out for the last couple of days. It doesn't leak when putting my nail gun down - this is a plus. Not sure if this is made in America, but appears to have the local stamp on the coupler. You will not be sorry in buying this product. I looked long and hard before buying this simple item. Hope this helps.