High-Quality Aluminum Alloy: 8.8-pound aluminum carbon CO2 cylinder dispensing draft beer and other beverages. The bottle body is made of high-quality new aluminum alloy, lightweight and corrosion-resistant.

Gray Powder Coating: The CO2 tank's outer layer is coated with gray glossy powder epoxy resin, which is more beautiful and durable and prevents corrosion and abrasion of the bottle body.

Strong Stability: A 5-pound gas can hold approximately 6-8 small barrels of beer. The working pressure of each aluminum cylinder is up to 1800 PSI/124 BAR, with a test pressure of 3000 PSI/207 BAR.

Dual Certification: The aluminum Co2 tank's exterior is covered with double certification marks from the US Department of Transportation (DOT) and the Canadian Transportation Department (TC), with fresh certification dates.

320 CGA Certification: The 320 valve is CGA certified and has external threads compatible with CO2 regulators. Gaskets are included as a gift to prevent gas leaks more effectively.