Built to deliver a steady supply of air in harsh diving conditions, the MK17 EVO is completely sealed off from the elements, ensuring trouble-free operation no matter how cold or murky the water gets. It is more compact yet delivers better breathing performance than its predecessor. The S620 Ti embraces the best features of SCUBAPRO’s renowned S600 in an upgraded, state-of-the-art design. Delivering excellent performance; the S620 Ti’s work of breathing has been reduced by 37% over the S600, providing effortless airflow under all dive conditions. The large purge button improves water circulation, and the exhaust tee directs bubbles out of the field of view. It’s a stellar combination can be relied upon to deliver top-line performance in all dive conditions.