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Apeks XL4 Regulator

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  • Description

    The Apeks XL4 Regulator is a lightweight coldwater rated high performance regulator that is ideal for technical divers that want to reduce the weight of their setup or any diver that want to prioritise weight without compromising performance.

    The XL4 is ridiculously light, weighing just 905g for the DIN version. That doesn't mean that it isn't very capable though. The XL4 uses an over-balanced diaphragm first stage with environmental seal and an over-moulded end cap that further reduces the risk of ice build up around the first stage. Heat exchanging fins are also incorporated into the body of the first stage to help dissipate the cold generated as air decompresses inside the first stage. There are four low pressure ports and one high pressure ports to provide plenty of hose routing options.

    The second stage is incredibly compact and lightweight yet still features a balanced valve for excellent performance and smooth breathing, diver adjustable venturi control, a heat exchanger on the inlet for improved cold water performance, a compact exhaust tee and the Apeks comfo-bite mouthpiece.

  • Features

    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.

    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.
  • Reviews
  • Returns

    30 DAY RETURNS

    If you change your mind, it doesn’t fit, or you become inflicted with buyer’s regret - that's OK!

    Mike's Dive Store offer an extended returns policy of 30 days - so you can be rest assured if the suit, piece of diving equipment or gift doesn't suit then just send it back and we will either exchange it or offer a full refund less any postage costs. Too easy!

    Please note that there are some special order items on our website that will be subject to a 20% re-stocking fee but we will let you know about these items before we special order them so that you are aware of this. If this is the case we can always help with correct sizing so that we minimise the risk of return.

    For step-by-step instructions click here