The exceptional A700 second stage, teamed with a perfectly matched MK25 EVO, forms the ultimate high airflow system for all diving needs. SCUBAPRO sets the standard for second stage regulator performance with the A700. Integrating air-balanced valve technology, the A700 brings you extraordinary breathing performance in a striking, precision-handcrafted, full-metal package. Whatever your dive destination, the SCUBAPRO A700 lets you breathe effortlessly and naturally underwater for a lifetime of exceptional dive experiences. The latest regulator innovation from SCUBAPRO is the patent-pending Extended Thermal Insulating System (XTIS), ushering in a new era of cold water protection for the industry. Available in EVO first stages, XTIS fully insulates the inner mechanical components for extra protection. With it, the cold-water protection rating for MK25 EVO surges another 30 percent.