Apeks DS4 Tungsten 1st Stage

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Apeks DS4 Tungsten 1st Stage

The Apeks DS4 Tungsten Regulator is among the most durable units available.

 The lightweight DS4 is coated with Chromium, Titanium and Zirconium and maintains excellent balancing.

An advanced dry seal design further makes it possible to breath easy and without worries of exposure to contaminants.

First Stage:

  • 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 thus preventing ice buildup and keeping silt and contamination out.
  • 4 medium pressure ports 3/8 UNF
    1 high pressure port 7/16 UNF
Connections DIN and Yoke
Type of first stage Over-balanced diaphragm design, environmentally sealed
Body Type Cylindrical
Number of HP ports 1 (7/16" UNF)
Number of MP ports 4
Environmental Dry Kit Standard
First stage exterior Chrome over marine brass
Orientation Convertible LH or RH
Coldwater Use Yes