Apeks XL4+ Regulator - DIN

Apeks XL4+ Regulator - DIN
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Apeks XL4+ Regulator - DIN
New from Apeks, the XL4+ regulator is designed with the cold-water exploration diver in mind.
The Apeks XL4+ is a compact lightweight regulator suitable for diving in all environments including cold water locations. Its design and low weight help reduce jaw fatigue on long dives. The XL4+ also makes an ideal stage regulator, perfect for the technical exploration diver with a large amount of equipment. The XL4+ regulator is a high-performance option for those technical divers serious about weight savings.
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
  • Type of first stage - Over-balanced diaphragm design, environmentally sealed
  • Body Type - One piece forged body
  • Number of HP ports - 2 (7/16" UNF)
  • Number of MP ports - 4 (3/8" UNF)
  • Weight DIN – 905g (2 lb)
  • Environmental Dry Kit - Standard
  • First stage exterior - Satin
  • Coldwater 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
  • Nitrox compatible - Yes to 40% O2 when new, out of the box / Can be O2 cleaned to 100%.


  • Model: 7791
  • Shipping Weight: 1.1kgs
  • 1 Units in Stock
  • Manufactured by: Apeks


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This product was added to our catalog on Thursday 15 November, 2018.

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