Metal construction for durability and long term reliability What you get Each package includes a CO2 Flowmeter Regulator, providing a reliable and straightforward solution for gas regulation Clear accurate reading Transparent, easytoread gauge with a visual measurement of your gas output Design Expertly designed for control of CO2 and argon gas, making it an essential and adaptable tool for a wide range of applications Usage scenarios Homebrewing and kegging Regulate CO2 delivery to carbonate and dispense beverages with consistent pressure and accuracy, helping you achieve stable carbonation and reliable pours. Planted aquarium setups Precisely dose CO2 to support plant growth while maintaining stable tank conditions and minimizing fluctuations that stress aquatic life. Smallscale welding and metalworking Use with argon or CO2 shielding gas to control gas flow in TIG or MIG processes, improving weld quality and process stability.