I had read about this on one of the RV groups I’m a member of. In light of all of the positive comments, I decided to give it a try. This is an awesome addition to our motorhome! With a 6 gallon water heater, it’s very hard for both Dale and I to get back to back hot showers! Fast forward to post installation of the Oxygenics shower head and we can take back to back showers, both with plenty of hot water! And, the “pause” button on the shower head keeps your water temp as is when you resume water flow! That is amazing! So Dale and I both would highly recommend this shower head!!