: This diving bottle pressure meter is designed with a threaded interfaces, so you can easily connecting This cylinder air pressure gauge is make of Stainless Steel that is plated, so it is not easy to be damaged This pressure gauge is designed to measure and display the cylinder air pressure This diving cylinder pressure meter is anti-corrosions, and sturdy, and is a good option to replace a worn or damaged Wide ranges: This air pressure meter can measure from 0 to 350bar, meeting your different diving needs