You cannot breathe directly out of a scuba tank because of the high pressure. A regulator reduces pressure to safe a level that can be inhaled by the diver. A diving regulator has two parts: the First Stage reduces the tank pressure and connects it to the Second Stage which contains the mouthpiece for breathing
The XT1 Regulator welcomes a new generation of regulator performance at Dive Rite. An Elite Performer, the XT1`s advanced, Patented Design earns top marks from Mike Ward of Dive Lab. With work of breathing at less than 1.0 J/l, the XT1 performs right alongside premier regulators on the market today. The Dive Rite XT1 Regulator with five 3/8" Threaded Low Pressure Ports gives divers Ultimate Flexibility in Hose Routing. This is Especially Beneficial to the Back-Mount Technical Diver where the need for a Streamlined Regulator Configuration is required. It does not cause undue stress on the hoses. One of the 5 LP Port is located on the Top-of-the-Turret and is designed with Safety and Convenience in Mind. The Port is slightly Convex and Slotted on each Side to accommodate an 11/16" wrench for Securing the Turret while loosening the LP Hose. This makes it Easy-to-Change the Hose without concern of loosening the Turret. The Regulator comes equipped with 2 HP Ports with 7/16" Threads that are Angled 90? from the DIN/Yoke Fitting, which gives the perfect angle for hose routing. Designed for the Challenging world of Technical Diving, this Regulator is pending certification to CE EN 250 and its approval for cold water 4,350 psi (300 bars) service, having passed the most rigorous of tests by Dive Rite. The Balanced Diaphragm, Black Chrome Plated Marine Brass First Stage Regulator is inherently Environmentally-Sealed.