29137000 Grohtherm Dual Function Thermostatic Valve Trim, StarLight Chrome

Great product . I would suggest having a plumber do this unless you have extensive plumbing knowledge.

Great fixture. I love how I can turn on and off all my outlets (rain 1, rain 2, and handheld shower) independently. Even better is that I can dial in the temperature once and it is set for all three outlets, as well as for the next time (until somebody makes a change to the temperature dial). While each individual outlet has a flow control dial (besides the on and off putting), it cannot be reduced to a very small flow - it only goes from normal flow to a lot of flow). It would be cool if I could dial it to almost nothing or to a slow drip. Super easy to install and a beautiful piece of craftsman ship, you will love to I stall it, to look at it, and to use it. My shower experience has significantly improved since I I stalled this!

Still works like new since purchased in 2019. Very durable still looks like new. Water comes out like a spa. Paid $100 less than the price now. Inflation ouch !

This was shipped to us with the stops removed so the unit was full of water before testing and it's missing the volume control stems. Unfortunately, the instructions are so poor you don't discover items are missing until halfway through the installation and then there's no uninstalling for return. Now we'll be out of pocket for ordering the volume control stems directly from Grohe.

Wow! I cant even begin to say enough positive. This is the absolute most amazing shower addition. Unfortunately we weren't able to find a single plumber that could figure out how to install it. It does come with lots of pieces, but we ended up installing it ourselves bc the plumbers didnt want to be held liable if they did it wrong. Its amazing. Its the best thing we put in our bathroom. Its so neat.

I knew this was the diverter/controls for me the minute I laid eyes on it: all in one -- not multiple knobs and temp controls -- and thank the lord, no pull-up diverter on the tub spout (my old set up never really worked correctly and broke twice in 9 years). The Grohe is BEAUTIFUL, flexible, and simple to operate. I'm very happy with mine. Now comes the "But..." 1) Be warned, installation is NOT for amateurs. My very experienced plumber even said it was really fussy and complicated to put together -- lots of springs and little pieces to get in place on the trim side. I looked at the exploded schematic and it made my head spin. 2) I had a a mishap with the valve (ahem, it involved a "helpful" man, a drill, and installing shelves in the linen closet behind the shower). After several panicked phone calls to plumbing supply places, a got confirmation direct from Grohe that the valve and the trim only come as one unit. You cannot buy just the valve or just the trim. So be aware, if anything happens to one part, you're going to have to pay another $400+ for the whole component. OUCH. I'm giving it 4 stars only for price, the fact you have to buy the Smartbox separately, and replacement parts are all or nothing. Otherwise I'm pretty sure it's the fanciest and nicest thing in my whole house.

One of my valve cartridges was bad out of the package, and the whole unit was installed in my wall making a return impossible. So I had to call Grohe customer service to get the cartridge replaced. They picked up the phone immediately with no hold time whatsoever. After confirming a few basic details, they quickly shipped me a new valve cartridge with absolutely no hassle. For this sort of product customer service is super important since you can’t tear it out once it’s installed, and these guys are easily the best at that. As for the product, it works exactly as advertised. I just wish they had clearer instructions on how to calibrate the temperature, but there are some good YouTube videos on that and it’s very easy once you know that you simply need to pry out the grey inner piece till it’s free from the dial, then rotate the temperature valve with a screwdriver until it is set up the way you want it. Then simply push the grey piece back in.

This product works really well has been in use for 8 months now. Really like the features little different to install but lots of info out there for installing. Would recommend this product.

Great price on Amazon easy to install once you study the instructions and watch their Video .

The reviews for this valve and trim kit are so full of misinformation its ridiculous. This trim kit and the Grohe smartbox are a simple installation that any diy'er can handle. Yes, the written instructions are a bit cryptic, but Grohe has installation videos in many languages that cover each and every step - and there aren't many! Its such a well thought out system, I'm never going back. Watch the installation videos folks.

Very impressed. Replaced my old shower valve with this excellent shower valve and surprised at how much better this is. Easy to install, simple operation with great control of temperature and flow rate. The quality represents great value. I'll stick with Grohe in future.

Apart from the big round cover plate, everything is plastic. The cover for the big temperature dial keeps coming off and our plumber warned us that he fitted many of the same model (but in silver) and 3 of them developed a leak within half a year So far so good but for RRP £800 I'd expect better quality.