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SPX Piston
6 mm in Diameter
Navy's Class A standards at 198 feet
with its pneumatically balanced demand valve and simple
Sure Fits Buckle Tensioning System
Hollis 500SE + DC7 Din Regulator Wetsuits SPX PistonOld School. New Tech. The 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 back mount and side mount users and optimum performance regardless of depth. 500SE SECOND STAGE
