That’s not a Dik4. It’s a Koc-du
Thank you but my shower valve was only 10 years old. Do you happen to know the brand so that I can call them for service?Sort of, it's the name of that line of rough-in valve bodies. They got bought out a couple decades ago and the parent company kept the name as a reference. They may have changed it recently, I use a very old supply catalog.
Thank you for the info. Isn't that a Home Depot store brand? I got it at their high end Expo Design Center at the time. I think it may be more upscale that Glacier Bay though. But I'll give them a call. Getting desparate as my only other alternative is to replace the entire set up but it will require me to open the back wall...Looks like a Glacier Bay.