Houvan S300 Scuba Tank The diving tank is made of 6061 aviation aluminum, and the three-layer process is adopted to make resistant to the erosion of seawater. The H300 has a capacity of 0.5L and can dive underwater up to 10 minutes, and the actual dive time may change depending on the depth of the dive, the temperature and the environment. Note: The maximum dive depth should not exceed 33 feet, it should only be used at 100 feet when used as a backup air source. After-sales Service You can get S300 scuba tank, anti lose rope, 0.5L bag, user manual and some other additional accessories. We provide you with scuba tank technical support and after-sales service 24 hours a day. If you have any questions about the diving equipment product, please contact us in time and we will answer you within 24 hours.