Reddit reviews Grohflex Cosmopolitan Single Function Thermostatic Trimwith Control Module
We found 1 Reddit comments about Grohflex Cosmopolitan Single Function Thermostatic Trimwith Control Module. Here are the top ones, ranked by their Reddit score.
GROHE StarLight finish for scratch and tarnish-resistant surfaces for a lifetime of beautyGROHE TurboStat technology delivers water at a desired temperature within a fraction of a second and keeps it constant for the duration of the showerFor shower only or shower/tub with diverter applicationsIntegrated volume controlIntegrated bypass option when used with diverter tub spout
This is the one we got: https://www.amazon.com/Grohflex-Cosmopolitan-Function-Thermostatic-Trimwith/dp/B006K8HUF4
I also had to buy this to install it: https://www.amazon.com/GROHE-35026000-Grohflex-Universal-Rough/dp/B006K8HXNI
There are probably less expensive ones but we're happy with this one. Note that some valves which cost less and look similar are "pressure balancing" valves. They're definitely an improvement but not as good as temperature regulating valves.
So, not cheap. But the 50-year-old shower valves in my bathroom were beyond repairing and I would have had to replace them anyway.