●✅【Premium Quality】The sodastream adapter hose is made of high quality stainless steel & solid brass, which is rustproof, wear-resistant, anti-aging and not easy to deform. Durable for you to use. ●✅【Universal Adaptability】The standard CGA-320 external hose can be used for large CO2 storage tanks (including CGA-320 in the USA, Canada, Brazil, Colombia, Philippines, etc.) and is suitable for most vaporizers and does not require continuous replacement while working. ●✅【Upgrade Design】The upgraded CO2 tank CO2 cylinder direct adapter hose kit has improved air tightness. The brass and aluminium construction allows it to withstand temperatures up to 100°C (212°F) and the rubber ring is made of food grade material for safety and security. Working pressure is up to 4500 PSI. ●✅【What You Get】Package includes 1 pc tank cartridges hose, 2 pcs dust-proof covers and 3 pcs gaskets. Please note that to improve the gas tightness, please tighten the connection to the CO2 reservoir with a spanner. Also, if you find that the hose is leaking after a period of use, the gasket may be worn out. Please replace the gasket with a new one. ●✅【Services】We are committed to offering superior quality products and efficient customer service. For any product questions, please contact us, and we will get back to you ASAP.