HOLLIS 500SE 2nd Stage Regulator

Old School. New Tech. The new 500SE utilizes a servo controlled valve to provide precision airflow and unparalleled 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. Overbalanced diaphragm first stage also provides ideal hose routing for both backmount and sidemount users and optimum performance regardless of depth.500SE Second Stage Features: - Pneumatically balanced servo valve system - Patented Orthodontic Mouthpiece for comfort and reduced jaw fatigue - Standard with 30´ maxflex hose - Easily disassembled without the use of tools and underwater if necessary - Left or right positioning - no upside down - Boltsnap tie point