A diving cylinder, scuba tank or diving tank is a gas cylinder used to store and transport high pressure breathing gas as a component of a scuba set. It provides gas to the scuba diver through the demand valve of a diving regulator.
Diving cylinders typically have an internal volume of between 3 and 18 litres (0.11 and 0.64 cu ft) and a maximum pressure rating from 200 to 300 bars (2,900 to 4,400 psi). The internal cylinder volume is also expressed as “water capacity” – the volume of water which could be contained by the cylinder. When pressurized, a cylinder carries a volume of gas greater than its water capacity because gas is compressible. 600 litres (21 cu ft) of gas at atmospheric pressure is compressed into a 3-litre cylinder when it is filled to 200 bar. Cylinders also come in smaller sizes, such as 0.2, 1.5 and 2 litres, however these are not generally used for breathing, instead being used for purposes such as Surface Marker Buoy, drysuit, buoyancy compensator inflation and spare air systems.
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This is the Zeagle Tank Pouch for Scuba Divers.
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This is the Zeagle Tank Fill Adaptor 330-FA10-AA Connection for Standard Scuba Valve Filling Whip.
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Stay down longer on your dives with these twin tank mounting bands
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This is the Zeagle H. D. Pony Bottle Heavy Duty Kit Twin Mount Straps for Scuba Divers Free Shipping in the USA
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This is the Zeagle Compact Pony SPG Pressure Gauge for Scuba Diving Bottle Spare Cylinder.
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FREE Shipping in the USA This new manifold is the result of many thousands of dollars in engineering, research, and tooling development. Built with the inspiration and the tradition of the widely famous THERMO Isolation Manifold, the new XS Scuba isolation manifold retains the shape, high luster exterior plating, and interior design of the THERMO, while offering several design changes that are individually small, but collectively represent a gigantic improvement.
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This is the XS Scuba Tail Weight Pouch Trim Adjustment Weight Pocket for Scuba Divers.
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Consists of a rugged, double slotted base with a removable, silicone band and stainless steel hook. The holder is designed to secure 7.25 in. (184 mm) diameter scuba tanks. It can also fit 6.9 in. (175 mm) and 8.0 in. (203 mm) tanks, though the fit will not be as optimal.
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This is the XS Scuba Replacement Tank Holder Kit for Scuba Divers.
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FREE Shipping in the USA This is the XS Scuba Highland Tank Bands PAIR with Stainless Steel Buckles for Scuba Divers.
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FREE Shipping in the USA This the XS Scuba Highland Single Tank Adapter for Scuba Divers.
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FREE Shipping in the USA This is the XS Scuba Deluxe Cylinder Equalizer with Braided HP Hose
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This is the XS Scuba "V" Weight Pouch Holds up to 7lbs for Scuba Divers
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This durable Cordura made expandable cargo utility pouch by xDeep brings extra storage with super easy access for sidemount divers.
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Prevent unnecessary inconveniences on your dive trip with this handy o-ring kit
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Protect that expensive tank valve and important o-ring with this awesome cap
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You spend a lot of money on your gear. Keep track of it with this great paint marker
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This handy accessory attaches to any standard BCD hose fitting allowing you to inflate your tire, innertube, buoy, etc. virtually anything with a standard tire inflator nozzle, using your air tank!
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This is the Trident Tank to Tire Inflator Yoke First Stage with Hose and Tire Connection
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Protect your gear and keep your tanks from rolling around with this Hex Rimmed tank boot.
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Afford to dive with Trident
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This product extends air hose life, use to identify each hose. There are many colors to choose from and they fit most scuba diving air hoses. Provides color enhancement and protects hoses from abrasion
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This is the Trident Paintball Filler for Paintballers
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Great for night dives or low viz conditions.
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Great for blowing off work areas, inflating mattresses, inner tubes, etc.
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Safely transport your tanks in your vehicle or boat, save your tanks and expensive scuba gear. A fantastic value
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This is the Trident Deluxe Tank Carrier for Scuba Divers.
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Don't be left out on your next dive, this is a great kit from Trident!!!
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Free Shipping in the USA
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FREE shipping in the USA Tilos Dual Regulator Adapter YOKE
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This Tilos dual regulator adapter is the DIN version that connects the left and right modular valves together to build a manifold.
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FREE Shipping in the USA This is the Tiger Pony Bracket for Scuba Divers/Dive Tanks.
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The Vindicator was designed to be an easy to read visual safety device to prevent divers from starting a dive with their air turned partially on or turned off completely. With 9 different sized models, the Vindicator is easily retrofitted to most valves on the market. The Vindicator is an easy way to reassure yourself and fellow divers whether your air is turned on or off. Perfect for individual divers, rental departments, dive charters and open water instruction
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Anyone who has had to discharge old, leftover breathing mix knows what a problem it is to keep the hiss of the released air to a reasonable level even during relatively slow discharge.
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FREE Shipping in the USA This is the Tank Pressure Checker Twist Bleed for dive tanks
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This is the Tank Fill Whip for Dive Tanks.