The A700 second stage, with its metal casing, screw-down cover, metal valve housing (barrel) and over-molded accents, exhibits a real muscularity in design. Put them together and you get unparalleled breathing performance whether you're cruising the balmy waters of the tropics or venturing beneath a polar ice cap. Rugged full metal second stage case and valve housing (barrel) are able to withstand years of aggressive diving. Metal second stage case construction enables the use of a larger diaphragm inside a compact casing, increasing breathing sensitivity. Air balanced second stage valve smoothes out the inhalation effort when diving at varying depths and supply pressures. Sectional exhaust tee and a first-rate purge help to deliver effortless inhalation and an ease of exhalation that is unmatched. 2nd Stage Design Balanced 2nd Stage Series A Series Nitrox Mix Up to 40% 2nd Stage Materials All-Metal Casing
