Halcyon Halo Second Stage Regulator

Halcyon’s Halo second stage regulator offers steadfast reliability and impeccable performance; two methods of breathing adjustment make it the top choice for demanding divers. As soon as you experience the smooth, high volume of air delivered by a Halcyon second stage you will be hooked.

Balanced downstream valve, adjustable inhalation, air control vane and a comfy mouthpiece.

Breathing underwater should feel natural and that experience is one of the things that most clearly separate Halcyon second stages competitors.

As soon as you experience the smooth, high volume of air delivered by a Halcyon second stage you will be hooked.

The high quality second stage regulators provide diver adjustable controls for the ultimate in breathing performance.

Halcyon’s Halo second stage offers steadfast reliability and impeccable performance; two methods of breathing adjustment make it the top choice for demanding Halcyon divers.

The Halo provides amazingly smooth performance in all conditions providing unsurpassed performance with enhanced technology.

Balanced, downstream valve offers incredibly smooth breathing in all conditions. The design slightly offsets the force of the downstream air entering from the first stage, allowing reduced spring tension and a decreased inhalation resistance.

Halcyon first stages are balanced, so the Halo is a perfect fit with either the Halcyon H-75P or Halcyon H-50D first stage.

Adjustable inhalation control refines breathing effort by way of an easy access control knob; this allows the demanding diver an opportunity to fine-tune the air delivery of the second stage.

Air Control Vane (ACV) offers a second diver adjustment for the ability to fine-tune breathing. The ACV uses vacuum assist technology to reduce work of breathing and increase diver comfort. This level of refinement is available on all Halcyon second stages.

ACV in “dive” position gives powerful breathing support while ACV in “Halcyon” position helps prevent free flows; this can be helpful on the surface, when diving in currents, while scootering, or when the Halo is used as a backup regulator.

Comfort mouthpiece is standard on every second stage to reduce jaw fatigue and mouth irritation. This long lasting mouthpiece requires only a minimum effort to hold comfortably in place.

In combination with the freedom of head movement provided by Halcyon’s primary long hose, you will enjoy dives free from the jaw fatigue common with certain mouthpieces and/or poorly balanced hose routing.

• Compatible with 40% Nitrox

We aim to dispatch items within the Dispatched Time indicated but will inform you of approximate delivery times should any item on your order be out of stock or on supplier backorder due to manufacturing and/or transport delays caused by global or regional shortages.

Please contact us before any return with your order number and date details. Receive our Returns Authorisation Form and instructions and enclose them with your return to expedite a refund.

        Email us at sales@dirdirect.com or call us on +44(0)1305 824 555

Note that all returned items are shipped at the customer's own risk and remain the customer's property until received by Underwater Explorers, so please ensure they are packaged well and use reliable postal services with tracking facilities. The goods will be inspected on arrival. 

Return postages are at your own cost and our outbound shipping costs (if items are sold with integrated basic shipping charges) may be deducted from any UK mainland refund unless linked to a fault/defect claim. 

Please contact us with your order number and name before sending any returns to:

Underwater Explorers – Returns
Unit 1, Maritime Business Centre
Mereside, Portland
Dorset, DT5 1FD 
United Kingdom