APEKS DS4 1st stage DIN 300

This high-performance regulator boasts an over-balanced first stage

Suitable for coldwater use thanks to its first stage environmental dry seal

First Stage:

• Uses the DS4 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.
• 1 HP port and 4 MP ports are available.
• An environmental dry system keeps water out of the main spring chamber thus preventing ice buildup and keeping silt and contamination out.
• DIN 300 bar

Specifications

• Connections     DIN 300 bar
• Type of first stage     Over-balanced diaphragm design, environmentally sealed
• Body Type     Cylindrical with environmental dry seal (DS4)
• Number of HP ports     1 (7/16" UNF)
• Number of MP ports     4 (3/8" UNF)
• Environmental Dry Kit     Standard
• First stage exterior     Chrome over marine brass
• Coldwater Use     Yes
• Heat Exchanger for freezing resistance     Yes
• Weight     Yoke 1130g