The AirTech CE regulator is the top of the line Cressi model. It comes with traditionally sized 2nd stage casing and takes advantage of all the most modern technology to offer the best in all situations. The downstream regulating system has a very light piston made from technopolymers, and is pneumatically balanced to guarantee constant performance, irrespective of the depth or the pressure in the tank. The 2nd stage has a dual regulation system: an upper deviator that acts on the Venturi effect and a side knob to regulate inhalation effort. The size of the 2nd stage has no effect on the weight, which is very light because of the use of special technopolymers and titanium inserts. This regulator is easy to breath and with the rotating LP ports hose positioning is a snap.