The Thunderbird Aluminum SCUBA tanks are durable, reliable, and visually appealing. The tank is manufactured from the industry standard lightweight, high-strength aluminum 6061-T6 alloy. Great size for primary youth cylinder or instructional pool cylinder, the 63 cubic foot has an ample air capacity and is compact in comparison to a full 80 cylinder. The 63 cubic foot bottle has a 3000 psi (207 bar) service pressure rating, a capacity of 61 cu. ft. (8.7 liters), is negative 2.3 lbs. (1.0 kg) when full and is positive 0.6 lbs. (0.7 kg) at 500 psi (35 bars). Cylinder weighs 27.2 lbs. (12.3 kg) when empty, and measures (Dia. x L) 7.25" x 21.9" (184mm x 556mm). Aluminum cylinders unlike steel cylinders don't rust, they oxidize. The oxidization of aluminum forms a protective coat that hinders the continuation of corrosion making aluminum cylinders less likely to be condemned due to excessive corrosion. When shipped the tanks valves will be removed and the tank will require re-inspection before being filled. Note: All Thunderbird Aluminum cylinders are nitrox ready up to 40% and meet certificated specifications of the US Department of Transportation (DOT) with DOT-3AL specification and Transport Canada Safety and Security (TC) with TC-3ALM specifications. Purchasers should check with other country requirements to know if the cylinders are certified for use in that country. Thunderbird's Valves are designed and manufactured for long life and heavy use. The Thermo by Thunderbird Pro Valve is no exception. Valve is made of marine grade brass with triple bright chrome plating for long life protection in salt water. Precision machined from high tension brass and chrome plated valve stems for years of service and corrosion free operation. The high-pressure seat is nylon. The Pro Valve will accommodate both Yoke and DIN regulators with its removable 230 bar (3,336 psi) DIN insert which can be removed using a 1/4" hex key wrench.
