KOHLERGenuine Part GP800820 Rite-Temp Pressure-Balancing Unit Cartridge, SINGLE

After I changed out my mixer valve for a leak, I found I would only either get completely cold or completely hot water. the solution was to change out the old pressure balancing unit to this one. Once again, a very easy install that solved my problem. Now my leak is fixed and I have great control of water temperature. All without paying for a plumber.

After watching a couple of YouTube videos, I found it easy to install the part. My "hot water only" problem went away. I wish I had considered contacting Kohler first because they're really good about sending free parts under their excellent warrant. I solved a minor drip with a warranty part.The videos don't always mention this step, but I chose to use a little plumber's silicone lube on the O-rings. I did see it in the written instructions from Kohler.

I've had this installed for around two years already to replace a failing one, it's a pretty easy job to do with minimal tools required. You just need a screw driver, maybe a wrench depending on your setup, and some plumber's tape to be on the safe side. I found it to be cheaper on Amazon versus a big box store and you're getting a genuine part.

I am being optimistic and giving this one 4 stars. I have gone through 2 of the old model pressure balancing cartridge and each only lasted 2-3 years before it started to be impossible to regulate the temperature and the handle was harder to turn. I have never had any leaks that I have seen others report (knock on wood).This cartridge installed as easy or easier than the older model and it fixed the temperature issue immediately and seems to have more pressure.I really just hope this newer model will last longer than the old model.I feel disappointed that a Kohler product is not longer lasting, but thankful it is not too expensive or hard to replace.I am very glad that I opted to get the model of valve (that this cartride is installed into) with integrated water supply shut offs so i have not ever has to shut off the water to the entire house to replace the cartridge.I do want to note that this cartridge did NOT come with the silicone lubricant that it was supposed to and was referenced in the install videos. May just have been left out on my package, but it was factory sealed and intact. Luckily I had some silicon lubricant on hand used for pool o-rings that should be the same stuff and it worked great.Also, a helpful tip that I saw online is to use a paper plate placed under the valve when removing the front of it to divert the water left in the valve or shower pipe so it runs out into the shower or tub instead of potentially down the wall. This worked great for me and not a drop went inside the wall cavity. I saw this suggestion on youtube back when replacing the first valve and it has worked great each time.

This insert I had to play around with two or three times for it to finally stop leaking, but it did work. The product is good. But you might have to get longer screws. Grease the gaskets.

This replacement part works well . The installation took some time as the disassembly of the faucet was the trickiest part. Had to do a bit of research to find out how to remove the various trim and covers for my model without breaking them. But once you understand the steps, the overall task is very doable for most home owners. So far, the hot and cold water is coming out very balanced and the faucet is very responsive again.

Knock offs started leaking less than a year and I decided to go back with genuine Kohler parts.

Works great, but they need to explain what the extra three o-rings are for. I think they are for the outer nob but you will only need them if you are reusing the same outer nob.