Purchased August 2018. Used for the first time today 10/3/18, noticed a crack at the base when installing the supplied connector. The fitting was simply assembled by hand! Air flows in all directions. Not safe to use. not good at all. Can't recommend it. Edited: Customer service made every effort to quickly provide a replacement for the defective item. I received the replacement, installed it, tested it and everything worked as it should: no leaks, no cracks. Good product, best customer service. From 1 to 4 stars. Thank you!