NET breathing apparatus cylinders are made by high strength aluminum or aluminum & carbon fiber, thus the weight is 40%-70% lighter than conventional steel cylinders. Advanced construction and producing technology provide long working duration and high safety factor. Cylinders can be made to many safety standards all over the word, such as DOT, EN, HSE, etc. They have a wide application in the fields of firefighting, medical and mine industry. NET supplies two types of SCBA cylinders for your choice: All Aluminum cylinders and Aluminum composite cylinders. Please google 'NETCYLINDERS' to find our web for more information.