1st Stage
- Compact machined first stage based on the expedition tested Apeks DS4 platform.
- Break through, innovative over-moulded first-stage endcap and environmental diaphragm helps prevent ice build-up that can cause first stage free flow in extreme circumstances. Also protects the first stage from impact damage.
- Large surface area heat exchanger diaphragm clamp helps increase the gas temperature inside the first stage, resulting in improved cold water performance.
- 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.
- With 2 HP ports and 4MP ports.
2nd 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.
- UV inhibitors to help prevent discolouration of the white materials.
ConnectionsYoke and DIN availableType of first stageOver-balanced diaphragm design, environmentally sealedBody TypeOne piece forged bodyNumber of HP ports2 (7/16" UNF)Number of MP ports4 (3/8" UNF)WeightDIN – 905g (2 lb)
Yoke – 1041g (2.3 lb)
Environmental Dry KitStandardFirst stage exteriorSatinColdwater UseYesType of second stagePneumatically balancedOpening Effort Control KnobNoIntegrated Venturi LeverYesMouthpieceComfo-bite™Exhaust teeStandard, one setHeat Exchanger for freezing resistanceYesHose typeBraided Flexi-hoseOverall work of breathing (WOB) scoresAvg. 0.90 joules/literNitrox compatibleYes to 40% O2 when new, out of the box / Can be O2 cleaned to 100%.