The scuba tank is a metal cylinder that divers breathe normally under water. Short for self- The scuba tank contains underwater breathing equipment, which is essential for the survival of divers. The content scuba tank holds filtered and pressurized air. Although scuba tanks are often referred to as oxygen tanks, they usually contain only about 21% of oxygen. The scuba water tank parts include mouth parts, valves and meters that allow divers to track the remaining air volume in the tank. The duration of the time frame scuba water tank depends on the individual\'s breathing rate, water depth and tank size. Experienced divers often allow tanks to last for an hour or more. The scuba water tank is usually made of aluminum alloy or steel alloy. Cheaper aluminum cans become cheaper when divers run out of air, while more expensive steel tanks do not affect the buoyancy of divers. The size of the SizeSCUBA tank depends on the amount of air it holds in pressurized cubic feet. The size of the tank ranges from 25 cubic feet to 150 cubic feet, but the average size is 80 cubic feet. The safety tank should be inspected by trained technicians every year. The scuba diving industry also requires a water pressure test every five years. The resources article written by Cat CarsonCat Carson has been a writer, editor and researcher for more than 10 years. She has professional experience in various media such as the Internet, newspapers, newsletters and magazines. Her work appears on various websites. Carson has a master\'s degree in writing and cultural anthropology and is currently pursuing a doctorate.