1. Comfortable to carry Portable design makes it easy for daily use and travel. Simply carry in your toolkit and store away to stay ready for your next dive. 2. Durable aluminum alloy construction Made from aluminum alloy with a steel-wire wrapped hose, this scuba tank refill adapter delivers durability and safety during use. 3. Broad compatibility Featuring an 8 mm fill valve design, the adapter is compatible with most standard scuba valves, ensuring it meets your needs regardless of the tank you use. 4. Easy installation The installation and removal process is straightforward, enabling quick filling of the scuba tank without extra tools, making it suitable for outdoor use. Practical use scenarios - Remote dive sites: top off your tank on location without needing special equipment or facilities. - Home or shop setup: quick, tool-free fills between dives to maximize your diving time. - Travel and rental operations: a portable, reliable refill solution that stays ready in your kit for on-the-go use.