A two step remote is a high pressure downstream injection system with a bypass that is all electronically controlled. You will use a remote that fits in your pocket to select #1, #2, or rinse. Using this system will keep your two step setup as lightweight as possible by only needing a normal high pressure hose and wand that you would use for any other type of pressure washing. Your remote system will be stationary on your washing setup wherever you decide to mount it!