Breathing underwater should feel natural, and that experience is one of the things that most clearly separates Halcyon second stages from our competitors. As soon as you experience the smooth, high volume of air delivered by a Halcyon second stage, you will be hooked. Our 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.
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 H-75P or H-50D Halcyon 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. Meanwhile, our Aura second stage features a pre-set inhalation effort that suits the most common diving conditions, and can be fine tuned by an authorized Halcyon Dealer.
-Balanced, adjustable downstream valve
-Adjustable inhalation resistance
-Air Control Vane (ACV)
-Compatible with 40% Nitrox
-Bench testing by an authorized Halcyon regulator service technician is recommended prior to use
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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