Thank you for your question, Charles! First, turn the water off at your shut off valves. Remove the handle with the provided allen wrench and unscrew the cap and bonnet nut by turning counter-clockwise. The cartridge simply lifts out of the valve body and replaced with the new cartridge. Re-install the handle and turn the water back on to test the faucet. Below is a link to the instructions that come with this cartridge as well as a How-To Video that shows how to make this repair on the Non-DST version of your model and cartridge which will essentially be the same process.
Best regards, Edward
Date published: 2018-12-17