K buy looking at your pic of the unit looks like u have 4 lines coming in or out of the unit. First will be incoming potable water. Second will be soda water leaving carbonator. 3 and 4 will be your soda supply and return. One of the pics show pumps and connectors. The elongated ones are called flojet and the other is shurflo your connectors are called QCD connectors. Qucick disconnect will not work with coke syrups. Will work with pepsi, 7up ,rc . You will need a bottle of co2. 2 regulators a high pressure for the carbonator usually 90-105 psi. and a low pressure regulator to push your pumps 40-65psi. Anything that will come in contact with the soda water must be either stainless steel or plastic. You will get sick if you use anything else. Last don't put root beer thru that gun.. Your drinks will smell like sewer in a few months. Stay away from the pungent syrups in barguns root beer dr pepper orange strawberry , anyways good luck if need something else just ask.