Poseidon Xstream Deep MK3 Regulator Set 

The regulator of choice for demanding divers. The regulator of choice for demanding divers using air, nitrox, trimix or oxygen. Outstanding performance and certified to 200 meters / 656 feet.

The objective; design the most reliable HP valve in the world. Every engineer knows the benefits of using balls in valve arrangements, since they will never be misplaced and will always find their perfect position. Unfortunately, varying upstream pressures will either push the ball too fiercely into the seat or leave it unsecurely loose, giving unbalanced characteristics.

By inventing the floating seat (which automatically repositions the ball) the increased upstream pressure is balanced equally with increased and counter-acting compression forces from the pressure adjustment spring, maintaining the benefits of having a perfect ball as the sealing element. The Xstream regulator is also self-balancing, which gives the same high performance irrespective of the pressure in the cylinder. When the seat is moved upwards by the high pressure, the design causes the upper pressure spring to compress and thus exactly self-balance the powers of pressure.

Xstream also has a built in anti freeze protection in its construction. TDA (Thermo Dynamic Antifreeze) ensures that the through-flowing water keeps the ice away, entirely without fluids or extra diaphragms.

The Xstream Deep: rated for use down to 200m and for use with mixtures containing helium (He) and a maximum O2 content of 40%. Colour coded Black on both stages to avoid confusion with other gas mixes. All Xstream hoses are oxygen clean and delivered in a sealed bag and they are available in the following lengths: 70, 90, 150, 215 cm (28, 36, 60, 85 inches).