This item was bought to join two short shower hoses; which it's probably not for, but it is the closest thing I could find to what I wanted, it does ok, but it (even with plumbing tape) leaks, but that's because it's not a plumbing fixture, which is my fault, not the item.  Too bad someone couldn't make one specifically for plumbing.  Tried to use to join to shorter hoses for use with an adjustable shower head (i.e., settings).  The original hose broke and I didn't feel like returning them, more trouble and cost than worth, but in hindsight, this, plus some other hoses, and so on, it might have been better to shell out for a long(er) hose.  Note to anyone who reads this review "the cheap route isn't always cheap".  My "Frankenstein" approach will work for now, but probably need a longer hose.  About a 6 foot one should do.  (I have a hose in mind, on my Amazon wish list, maybe I can get that and use this as a back up.)