This demonstration video discusses and shows the features of the ScubaPro MK25 / S600 50th Anniversary Limited Edition Gold Regulator System. This Regulator System is the special anniversary limited edition with special high tech gold finish. The ScubaPro Regulator is Nitrox compatible to 40% (the recreational limits of nitrox) and has a "Diver Adjustable" venturi to prevent unwanted free-flow. It features a 360 degree 1st stage swivel and a balanced 1st and 2nd stage for superior breathing performance. The ScubaPro MK25 / S600 Regulator System has "Diver Adjustable" Airflow, ergonomic safegrip mouthpiece for increased comfort, and is compact and lightweight.