Features: 1Universal CO2 gas cylinder refilling hose adapter kit simple installation. 2Using highquality stainless steel + PTFE material strong and durable to use. 3Allows connection of G5/8-14 CO2 tanks in most soda machines. 4Very soft and flexible not easy to fold light in weight tight connection. 5G5/814 // TR214 threaded interface good sealing performance no air leakage. Specification: Item Type: Soda HoseMaterial: Stainless Steel + PTFEWeight: Approx. 521g / 18.4ozLength: Approx. 1.8m / 5.9ftWorking Pressure: 4500psiThread Interface: G5/8-14 // TR21-4Refill adapter can be used to replenish a small CO2 tank from a larger CO2 tank.How to Use:1. Screw the pin valve into the soda machine2. Screw the nut onto the carbon dioxide cylinder and tighten it with a wrench3. Connect the quick connector4. Open the valve of the large gas bottle5. After completion you can use soda machineIf you want to unscrew items from the machine:1. Close the large gas cylinder valve2. 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 connector4. Unscrew the pin valve on the soda machine and unscrew the nut on the CO2 cylinder Package List: 1 x Soda Hose1 x Manual2 x Spacer1 x Gasket Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. This item is only applicable to gaseous carbon dioxide not liquid carbon dioxide. It cannot use a siphon for carbon dioxide tanks.4. Please do not disconnect the quick disconnect under pressure. The quick disconnect O‑ring will be blown off. It is recommended to discharge the remaining pressure on the soda machine.