The MK19 EVO / A700 is a high-performance diving equipment that combines the exceptional breathing capabilities of the A700 with the advanced features of the environmentally sealed MK19 EVO first stage. Designed to withstand freezing temperatures and prevent fouling of its inner mechanism, the MK19 EVO features a dry ambient pressure chamber with a double spring for reliable performance. The LP port swivel turret allows for flexible hose routing options. Crafted with precision, the A700 boasts a full-metal casing, front cover, and valve housing, ensuring unparalleled breathing performance. With effortless inhalation and unmatched ease of exhalation, the A700 sets a new standard in diving equipment.