The A700 second stage, with its metal casing, screw-down casing cover, metal valve housing and over-molded accents, exhibits a real muscularity in design. Its air-balanced valve technology and oversized exhaust valve work in conjunction with a well designed sectional exhaust tee, a first-rate purge and responsive user controls to create a bullet-proof breather with effortless inhalation and an ease of exhalation that is unmatched. Put the two together and you get unparalleled breathing performance whether you're cruising the balmy waters of Bonaire or venturing beneath a polar ice cap. A700 Second Stage Rugged full metal case and valve housing are able to withstand years of aggressive diving. Air-balanced valve smoothes out the inhalation effort when diving at varying depths and supply pressures. User controls include a diver-adjustable inhalation effort knob and coaxial-flow Venturi-Initiated Vacuum Assist (VIVA) lever. Super-flow hose features oversized bore to increase airflow. Ultra-comfortable orthodontic mouthpiece is easy to grip yet doesn't inhibit airflow. Weight: 9.3oz/265g. Airflow at 2900psi: 2000 l/min - 71 SCFM. Maximum low pressure: 203psi/14bar.
