Product review (5 stars): No more leaks!!!
After reading some reviews, I was a little hesitant to order this product for fear that it was going to leak.  Sure enough, water leaked profusely from around the base of the swivel that screws onto the hose bib .  The problem seemed most likely due to the washer not seating properly. I tried doubling up the washer and that took care of the problem.  From what I can see, this appears to be a good product. I am using it outside to mix hot and cold water from separate outside faucets for washing pets.