1L/2L/4L Aluminium carbon dioxide tank with CGA320 valve

Gas Dynamic extra thick gas cylinders are made of durable steel, making it easy to handle. CO2 system is essential to an healthy aquarium tank as it promotes aquatic plants to grow, thus will create a more healthier environment so this B&K co2 cylinder can be used for aquarium carbonation. Rust-proof with handles for easy transport.  ✅ Specifications: ● Volume: 1L / 2L/ 4L ● Size: about 40cm*11cm / 48cm*14cm. ● Weight: about 2Kg/4kg / 7kg ● Colour: silver. ● Material: Aluminium ● Suitable for aquarium tank carbonation ● Made of high-quality material, practical and durable. ● handle design, easy to use.