Hollis organizer 500SE DC7 Maxflex

Old School. New Tech. The new 500SE uses a servo-controlled valve to provide precise airflow and unmatched performance for both air and trimix divers in a side exhaust configuration. To achieve this, we have perfected the original "lever-servo valve" we designed 35 years ago. The overbalanced diaphragm first stage also offers ideal hose routing for both backmount and sidemount users and optimal performance regardless of depth. The 500SE second stage features a pneumatically balanced servo valve system. It has a patented orthodontic mouthpiece for comfort and reduced jaw fatigue. Standard with a 30" Maxflex hose. Easily disassembled without tools and underwater if necessary. Left or right positioning — no upside down. Boltsnap tie point. The DC7 first stage provides high performance over-balanced pressure, delivering progressively greater intermediate pressure as depth and gas density increase, ensuring superior gas delivery under extreme conditions. Fixed hose routing is ideal for both backmount and sidemount configurations. Environmental sealing prevents internal corrosion, contaminants, and icing of the first stage. Designed to meet the rigorous CE standard for coldwater performance. Nitrox compatible up to 40%. 2 high-pressure and 4 low-pressure ports. DIN/300 bar.