FEATURES

First Stage

• Compact machined first stage based on the expedition tested Apeks DS4 platform.

• 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 faster rate than ambient. This results in superior performance at depth.

• 2 HP ports and 4MP ports

ADDITIONAL DETAILS

Second Stage

• Compact and lightweight second stage improves comfort and helps reduce jaw fatigue on long duration dives

• High performance pneumatically balanced lever operated poppet valve

• Large, over moulded self-flushing and controllable purge button

• Ergonomic Venturi lever is easy to use and locate

• Flexible nylon braided hose has better cold water performance than a traditional rubber hose

• Standard metallic hose connection for interchangeability

• Comfo-bite mouthpiece has a unique bridge that fits across the upper palate and does not require bite pressure to stay in place

• Re-useable mouthpiece clip makes it simple to change mouthpieces in the field

• Durable and flexible rubber exhaust tee provides excellent bubble diversion

SPECS

Connections: Yoke and DIN available

Type of first stage: Over-balanced diaphragm design, environmentally sealed

Body Type: One piece machined body

Number of HP ports: 2 (7/16" UNF)

Number of MP ports: 4 (3/8" UNF)

Weight: DIN – 905g (2 lb)
Yoke – 1041g (2.3 lb)

Environmental Dry Kit: Standard

First stage exterior: Satin

Cold water use: Yes

Type of second stage: Pneumatically balanced

Opening Effort Control Knob: No

Integrated Venturi Lever: Yes

Mouthpiece: Comfo-bite™

Exhaust tee: Standard, one set

Heat Exchanger for freezing resistance: Yes

Hose type: Braided Flexi-hose

Overall work of breathing (WOB) scores: Avg. 0.90 joules/liter