Thunderbird 80 cu. ft Neutrally Buoyant Tank with Pro Valve

Description Thunderbird 80 Cubic Foot Neutrally Buoyant Aluminum Tank w/K-Valve Pressure 3300 psi (228 bar) Buoyancy Full Negative 4.1 lbs. (1.9 kg) Cylinder Nitrox Ready Yes, Up to 40% O2 Capacity 76.2 cu. ft. (10 liters) Dimensions (Dia. x H) 7.25 x 25.4″ (184 x 645mm) Weight Empty: 33.4 lbs. (15.2 kg) Materials Chrome Plated Brass, Rubber Type (Yoke, DIN, Convertible) Convertible Valve Nitrox Ready Yes, Up to 40% O2 Thread Size 0.750-14 NPSM