This water pressure regulator does not work at all. The pressure it allows from the house to the RV was way over the recommended PSI. It was just a matter of time and it would have blown the plastic pipes in my RV. I can normally take a very nice shower without turning off the water. With this regulator I was out of hot water within five minutes. It was as if I didn’t have one on my hose. Very disappointed. I had to return it. I went to Home Depot and bought the brass water regulator for half the price and it works great!!!