Because I could not find this info:
We are in our 5th season of camping with our T21TBHW. Things are beginning to wear out. The (cheapo) sink faucet was beginning to stiffen to the point I was afraid it would break at any time. As I researched replacements, I found that the same plastic replacement was north of $200. What a joke! I couldn't find anyone who gave an experienced alternative so I wanted to give my solution. I'll link the one I used below.
It fits great. It is metal not plastic. The hoses are plenty long. All it required for installation was two .5" nipples which I found in the lawn sprinkler parts section. I am very pleased with the outcome. Total cost = $46 + tax
https://amzn.to/3GJraVt