Mosmatic Undercarriage Cleaner PackageMosmatic Undercarriage Cleaner Package If you want to clean the underside of your vehicle properly, not just blast around blindly, this is the setup. I put this package together using all Mosmatic components, along with the correct orifices based on your pressure washer's output. This thing isnt gimmicky. Its stainless, Swiss made, and built to last. You get a real, pro level tool that actually works. This package has six versions: 1. 0, 2. 0, and 3.