Carefully designed with meticulous attention to detail, the Apeks FSRXTX200 is a high quality piece of equipment. The Apeks FSR XTX200 Regulator is the flagship of the Apeks scubaregulator range and the definitive blend of style and high performance. Features: Uses the proven ?FSR? type first stage as found on the ATX200 and Tungsten models. Bright chrome finish All medium pressure ports are now 3/8? so that the reversible XTX second stage can mount to either side of the first stage The over-balancing feature allows the medium pressure air in the hose to increase at a rate faster than ambient pressure resulting in superior performance Comes standard with an environmental dry kit which keeps water and contaminants out as well as makes the model more resistant to freezing Compatible to EAN 40, new, out of the box Although shipped in a standard right-hand configuration, this second stage can be reversed into a left-hand configuration by an Authorized Apeks Technician Features new Diver Changeable Exhaust (DCE) System. This system gives the diver the ability to change from a large exhaust tee to a smaller exhaust tee. The large tee provides the best exhaust bubble dispersion; the smaller tee is lighter weight and compact. The regulator comes with both sets of exhaust tees This pneumatically balanced second stage has diver-adjustable controls for opening effort and venturi control