GP876851 Mixer Cap and Pressure-Balancing Unit Kit,Compatible with Kohler Shower Valves K-304 and K-11748 Platforms Include GP800820 and GP77759,Black

This is a great replacement to my Kohler 28 years old shower mixer valve. Replacement was easy. I was wondering why to holes in the back were oval, not round like the original but it still works great. The lever now moves much smoother than the original Kohler. Highly recommended

An easy change over and it works great.

I bought this assembly kit so that it stops the leaking faucet, but it is still leaking.

Make sure you turn the water off and it is easy to replace. Be careful to install it the right side up so cold water comes out first and hot when turning the valve completely. The feel is easy and smooth. It is a great improvement for the old one and a much better price.

Putting it in was easy. Worked perfectly to replace a Kohler brand kit that was only about 2 years old. And then at about 1 1/2 months, it started to drip incessantly. Leaking only worsened to the point where it ran nearly non-stop. Bought a replacement like this one, and it was a bit different and didn't fit in the shower body plumbing assembly. So, I had to buy the Kohler branded one again. So far, the Kohler is working fine..lat less than 24 hrs at least. But the lesson is to not spend $60 and get a generic part Spend all $100 and get the name brand item. This unit was horrible. AND since it lasted over 30 days, I can't return it. All I can do is just whine (there...done). Best wishes folks!