The MPS Wet Nitrous Base Kits were designed for the experienced nitrous guy. They are a compilation of our finest nitrous components. We have been assembling these parts for some of the best nitrous gurus who build their own nitrous systems for years. These kits give you all the basic components necessary for your wet nitrous application. The MPS Wet Nitrous Base Kits do not include bottles, brackets, or any activation switches. This allows you to choose the best size bottle and mounting type for your individual applications as well as the best activation method for your MPS Wet Nitrous Base Kit. We offer two different MPS Wet Nitrous Base Kits. One, P/N 1-0440, with the nylon lines and our all in one distribution block and the other P/N 1-0417, with color coated braided steel lines and showerhead distribution blocks.