Dymax CO2 Aluminium cylinder is a single molded high pressure aluminium cylinder. Each canister passes through special passivation treatment on it’s surface to provide durability and less reaction against chemicals. Comparing with steel cylinders it has advantages of: light weight; odourless; strengthened against corrosion resistance and most importantly safer during application. All cylinders pass through hydrostatice inspection; high standard of quality control and includes detailed instructions for use and maintenance to make sure of maximum safety in operation and performance. Specially designed for aquatic use.