Description
Description
This compact first stage is a time-proven workhorse that has been embraced by the technical community around the world.
Features
Features
- DS4 First Stage:
- No rotating turret.
- Unique over-balanced diaphragm design - as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a rate faster than ambient. This results in superior performance at depth.
- An environmental dry system keeps water out of the main spring chamber, preventing ice buildup and keeping silt and contamination out.
Payment & Security
Payment methods
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WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.



