Evolve EV1003CP-SB ShowerStart Thermostatic Shut-off Valve in Chrome Finish, Water- and Energy-Saving Valve for Most Bathroom Fixtures, Not Low Flow, Uniform Plumbing Code Certified, 1-Pack

This is a great, low-lift way of saving water. I'm honestly surprised there isn't a competitor making this product, too, after all of these years; it must be patented.We had the original version at our previous house. In that one, the cord broke after a few months (not too much of a problem, just an annoyance) and the little flipper stopped being effective after a couple of years.This version has a cord that seems sturdier, and time will tell how long the product lasts. But, even if it's just a few years, it will have paid for itself a few times over in water savings, if our previous experience is any indication.

First thing to know: No, these valves do NOT last forever. I tend to have to replace them every 5 or 6 years. It probably depends on the type of water you've got and how much you use them. One of these days, I'll do a deep dive on trying to rehabilitate a dying valve (soak in a descaler like CLR, clean the inlet screen, ...?). In the meantime, it bothers me to waste water and energy by running the hot water past the point where it's reached the shower.I've seen some people's reviews complaining that these valves aren't made well anymore. Perhaps? I see that this Amazon seller (ShowerStart) is offering two models: One ("Chrome Polish") looks like it might be made of plastic, and costs about 20% less than the one that I bought ("Brushed Nickel"), which is definitely mostly metal. That's the version I've always bought, and it lasts years, in our home.In terms of finances -- no, the savings in water/energy probably won't recoup the cost of the valve. I buy it because wasting the water and energy just bothers me too much. But I live in SoCal, where water and energy are often constrained resources.

We installed Evolve shut-off valves in our last house, and was very pleased with their performance. Unfortunately, the new ones we got for the new place are cheap, plastic units that have been problematic. We purchased 3, and at first, I couldn't get any of them to work in our showers. I bought a pressure gauge, and that was not the problem. I sent a message to the company and got no response. It turned out that they are very sensitive to any additional pipe to the shower head. I had installed it a few inches back from the head, and it never shutoff. However, I discovered that placing it directly at the head got it to work. Not ideal since the string end up behind the head, hanging against it. Even with this, one of the units never worked. I had to get a replacement from Amazon, which is now working.This was disappointing, particularly when our past experiences were very good. I think it's a great idea, but the current execution leaves much to be desired. And customer service is non-existent. Buyer beware.

Work as intended, no issues, saving water and reducing my bill

Brushed nickel is made out of metal. The chrome is plastic and breaks easily if you over tighten it. Stay away from chrome and go with the brushed nickel.

I had one of the original ShowerStart TSVs back in 2017. It was a metal component, well made, and still works great. I bought some of the newer ones, thinking they'd be equivalent quality.They are not. They have all either failed within a year of installing, or failed IMMEDIATELY upon installing. Leaks out the back, threads just stripping and dropping a showerhead off, cracks appearing at the mold seams.The product is still a great idea, they just got too cheap with the manufacturing. Go back to metal construction, and I'll buy another

Bought as a replacement because we loved the old one so much. It does a fantastic job running until the water is hot then pausing. Saved a lot of water. Needed a replacement because we over tightened the last one with tools. Hand tighten only!

Installation was very easy but unless you're someone that let hot water run for a long time before getting into the shower this isn't worth the money. When taking back to back showers (2 people) it really doesn't work. The water will be a trickle but if you pull the cord all you'll get is cold water. I wouldn't buy another one.