Regulator
  

You cannot breathe directly out of a scuba tank because of the high pressure. A regulator reduces pressure to safe a level that can be inhaled by the diver. A diving regulator has two parts: the First Stage reduces the tank pressure and connects it to the Second Stage which contains the mouthpiece for breathing

Hollis 500SE DC7 Din Regulator

$599.95

DiveCatalog
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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.

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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.

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
High performance over-balanced first stage provides progressively greater intermediate pressure as depth and gas density increases for superior gas delivery under the most extreme conditions
Fixed hose routing ideal for both backmount and sidemount configuration
Environmental sealing prevents internal corrosion, contaminants, and icing of the first stage
Designed to withstand the rigorous CE standard for coldwater performance
Nitrox compatible to 40%
2 High Pressure and 4 Low Pressure ports
DIN/300 bar

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