Features 1、G5/8‑14 // TR21‑4 CO2 cylinder filling hose adapter kit, easy to connect the CO2 tank. 2、High‑quality stainless steel + PTFE material, strong and durable, long‑lasting. 3、Refill adapter can replenish a small CO2 tank from a larger CO2 tank, stable structure. 4、Very soft, flexible, not easy to fold, light weight, simple installation and use. 5、Good sealing performance, good tightness, no air leakage, suitable for soda tanks. Specifications Item Type: Soda Hose Material: Stainless Steel + PTFE Weight: Approx. 593g / 20.9oz Length: Approx. 2.5m / 8.2ft Test Pressure: 17000psi Working Pressure: 6000psi Thread Interface: G5/8-14 // TR21-4 How to Use: 1. Screw the pin valve into the soda machine 2. Screw the nut onto the carbon dioxide cylinder and tighten it with a wrench 3. Connect the quick connector 4. Open the valve of the large gas bottle 5. After completion, you can use soda machine If you want to unscrew items from the machine: 1. Close the large gas cylinder valve 2. Press the button of the soda machine to discharge remaining carbon dioxide (if you do not disconnect the connector according to this guide, the o-ring of the quick connector will blow off) 3. Disconnect the quick connector 4. Unscrew the pin valve on the soda machine and unscrew the nut on the CO2 cylinder Package List 1 x Soda Hose 1 x Manual 2 x Spacer 1 x Gasket