WTX Series Buoyancy Compensators Now, for the first time, the company that produces the premiere line of technical regulators offers you a premiere line of technical BCs. Introducing the WTX Series – a selection of harnesses, buoyancy cells and accessories that will certainly appeal to today’s technical divers. These fine products offer unparalleled versatility through their modularity. The components can be assembled into a highly technical rig for those trained to push the limits or scaled down to make a travel friendly rig that any diver would want to use.