Product review (5 stars): Simple to install
It didn't really solve my problem of the top rack staying dirty 100%, but it did help. Install is easy and doesn't require removing the dishwasher.

Shut off water/electricity and remove bottom kick panel. Unscrew water hose, and undo bolt holding the water valve on- 1/4" I believe. Unclip the multiclip and remove the hose clamp. Install new one in reverse. There are a ton on YouTube videos online of how to do this.