CO2 Bottle - Full (Gas content 4.5kg)

Full 4.5kg CO₂ bottle for beer brewing, kegging and kegerator systems.

This aluminium CO₂ cylinder contains 4.5kg of carbon dioxide and is suitable for WilliamsWarn BrewKeg systems, BrewMaster Gen2 and compatible beer dispensing setups when used with the correct regulator.

Current offer: this cylinder is $40 off because its current certification expires in December 2027.

Suitable for

• WilliamsWarn BrewKeg pressure brewing systems
• Beer keg and kegerator dispensing
• WilliamsWarn BrewMaster Gen2
• Compatible CO₂ beer systems using the correct regulator

What you need

A regulator is sold separately. The Premium Micromatic Regulator is designed to fit this cylinder.

Refilling your CO₂ bottle

When the cylinder needs refilling, see our CO₂ fill locations guide.

Cylinder certification currently valid until December 2027.