The Airstream Evoque Regulator combines the Airstream First stage with the Evoque Second stage to make one of the highest performing regulators on the market today. The Airstream Overbalanced and Environmentally sealed first stage is made through a forging process allowing optimized hose routing. The low pressure ports are angled 30 degrees down and 23 degrees out to allow hose routing directly over the shoulders. The high pressure ports are angled down 45 degrees to keep gauges closer to the divers hip and body. This process also allows air flow to be channeled through larger passages combined with the overbalanced diaphragm creates the lowest Work Of Breathing effort (WOB) 0.80 Joules per liter in all conditions and temperatures. Built into the front of the body of the Airstream is a forged heat transfer keeping warmer air inside and forcing cold out allowing this regulator to perform in the coldest conditions where others fail. The Evoque Balanced Adjustable Second stage is compact and designed to give superior quality of breathing to any diver. The balanced diaphragm is securely held down by a ring and inner cover that screws down below the front cover and purge button. The exhaust has a small hinged door allowing easy access to the diaphragm to clear any debris. This exhaust used with our Tattoo Mask or similar will allow all the exhaust gas and bubble to pass its side and not in front of the mask. The adjustment knob has a clutch system when turning clockwise to avoid over torqueing. Next to the adjustment knob is a large pre dive and dive venturi switch easily adjusted with or without any size glove. The inner valve is made of stainless steel parts providing excellent breathing in any environment or temperature. Octopus available with a high visibility yellow colored cover.