Sodastream Quick Connect Pink System The package includes: 1 * Adapter EHow to use: Prepare the necessary items: a wrench, a pumping fitting, a large carbon dioxide canister, an empty quick coupler after soda. First loosen the vent screw, then use the wrench to install the pumping connector into a large CO2 (W2.18) tank. Rotate to place the empty bottle at the filling site. Tighten the outlet valve so that the cylinder is well locked. This is the most important step and is a feature of our filling valve, so we can fill gas drink cylinders more safely than other CO2 filling connectors. Slowly open a large container of carbon dioxide to replenish the carbon dioxide in the beverage bottle. After about 15 to 20 seconds, the cylinder is completely full. Completely filled. First, close the large Co2 tank valve, then unscrew the vent valve to release the gas. Take out the bottle of drink - ready. Physical display