VaVoger Soda CO2 Pressure Regulator Adapter for Aquariums Homebrew,Female TR21-4 Soda Cylinder to Male G1/2 Paintball Co2 Tank

It is mainly used to convert the CO2 regulator that used paintball tank as the gas source to soda carbonator as the gas source. Because soda carbonator cylinder is cheaper, almost every household has it. And some people already have a refill adapter that refills from large CO2 bottles, so this is more convenient to use. This adapter can be widely used in aquariums, beer, wine brewing, and pneumatic tools as gas source conversion. Type: Female TR21-4 Thread to Male Thread G1/2 Please pay attation Female TR21-4 is connect soda cylinder, Male Thread G1/2 is for paintball