Oxygen Scuba Tank Sizes

There are many sizes of scuba tanks but you will find common standards throughout the industry.

Oxygen scuba tank sizes.

Smaller than an aluminum tank of the same capacity a steel scuba tank is a more compact air supply solution a fact that becomes doubly important for twin tank setups. The term diving cylinder tends to be used by gas equipment engineers manufacturers support professionals and divers speaking british english. Steel scuba tanks are denser than aluminum tanks meaning you have to be less concerned with buoyancy issues especially at the end of a dive. Divers who require higher percentages of oxygen such as nitrox have to buy the ones that are compatible with higher oxygen percentages and the valve has to be labeled as both oxygen.

Divers direct also carries the 40 cu ft 50 cu ft 63 cu ft and 100 cu ft. Some manufactures make scuba tanks that are only to use with air 20 9 oxygen. You should avoid high pressure aluminum scuba tanks such as the 3300 psi compact or neutral buoyancy aluminum tanks or the 3300 psi al100. The standard aluminum 80 cubic foot cylinder is the most popular size for recreational.

There is no perfect size tank for all diving types and all divers. Before buying a scuba tank it is good to ascertain the oxygen compatibility. Scuba tank or diving tank is more often used colloquially by non professionals and native speakers of american english the term oxygen tank is commonly used by non divers. 80 cubic foot tanks are the most popular among recreational divers and are also the most commonly found tanks on the water.

Pony or bailout bottles can range from 6 40 cubic feet. Back mounted cylinders range from 45 130 cubic feet plus. Note that this concern does not apply to high pressure steel cylinders depending on the service pressure of the scuba cylinder it may be filled with oxygen rich gases up to a maximum of 3442 psi.