Which cylinder is it, and how will it sit in the water? The database holds the makers’ data for over 1,200 steel, aluminium and composite cylinders from 19 manufacturers. Identify a cylinder from its diameter, length and weight, find one by capacity and working pressure, or browse the lot. Each entry shows everything its maker publishes.
Makers don’t state buoyancy the same way, so their figures can’t be compared one to one. The page works out the buoyancy of every cylinder the same way, from water capacity and empty weight, and shows the makers’ figures beside it (if you want to).