Scubapro MK17 A700 Regulator (Yoke) Balanced technology provides consistent performance at all tank pressures, at any depth and optimizes the second stage performance. Dry ambient pressure chamber provides better protection and performance in cold water, prevents water entry, enhancing trouble-free operation. Balanced diaphragm design, with ultra-fast flow to the second stage to obtain the lowest possible work of breathing at depth. Compact dimensions for light weight comfort. Diver adjustable inhalation effort with micrometric adjustment knob enables personalised breathing effort control. Newly aligned VIVA system for more precise control and comfort. Super high flow exhaust valve allows air to exit more freely and lowers the exhalation effort; also keeps bubbles away from face and mask. Available in either 232bar INT or 300bar DIN configurations