A scuba tube is most commonly called a diving cylinder or scuba tank.
While "scuba tube" might be understood colloquially, the more accurate and widely accepted terms within the diving community are diving cylinder or scuba tank. These cylinders are high-pressure gas cylinders used to store and supply breathing gas (typically compressed air or enriched air mixtures like Nitrox) to scuba divers underwater.
The term "tube" might lead to confusion as it can refer to other equipment used in diving, such as hoses or snorkels. Therefore, using the correct terminology is essential for clear communication and safety.
Diving cylinders are typically made of aluminum or steel and come in various sizes, each with different pressure ratings and gas capacities. The choice of material and size depends on the diver's needs, the type of diving being performed, and personal preferences.