Quality Dive Gear at Affordable Prices! **You can opt to replace this with an upgrade to a converter valve. Capacity (cu in) 807 Water Capacity (lbs) 29.2 Water Capacity (liters) 13.2 Diameter (in) 8 Diameter (mm) 203.2 Length (in) 36.2 Length (mm) 919 Cylinder Weight (lbs) 40.3 Cylinder Weight (kgs) 17.9 Service Pressure (psi) 3300 Service Pressure (bar) 228 Buoyancy lbs (empty) 2.2 Buoyancy lbs (full) -5.2 Buoyancy lbs (500 psi) 0.6 Air (cu ft) 100 Air (liters) 2832 When ordering multiple tanks, please create separate orders for each tank or call us at 858.581.2800 to order, to ensure accurate shipping rates