The Poseidon Cyklon is a legendary scuba diving regulator first introduced in 1958. It revolutionized underwater exploration as the world’s first single-hose regulator with the demand valve situated at the mouth. Over six decades later, its highly reliable, robust design remains a preferred choice for military forces (such as the German and US Navies), commercial divers, and cold-water technical divers.
- Ambidextrous Design: The second stage has no designated top or bottom. It can be fed from the left or right side and works perfectly upside down, making air-sharing simple.
- Side-Exhaust System: Bubbles are diverted away from the diver’s face to keep the field of vision completely clear. The side-purge setup also prevents current-induced free-flows.
- Extreme Cold-Water Performance: Engineered in Sweden, it is certified to EN250 cold-water standards and resists freezing down to extreme depths without needing a separate environmental seal.
🤿 Certification & Inspection Report
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Date of Inspection: 7/17/26
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Inspected By: Malibu Scuba Repair
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Current Bench Test: Fully Tested and Passed Initial Inspection. Functions perfectly but as will all DescendAgain regulators it will be full serviced with new owner information on a current dated repair order once purchase has been made.
🔍 Visual Condition Notes
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Very mild surface corrosion.
📦 What is Included
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Poseidon Cyklon 1st and 2nd stage only. To add the stage bottle bundle to your cart to include the low pressure inflator hose/Halcyon SPG bundle.
✅ 6 Month Full Warranty
✅ Free Parts on your first Annual Service
✅ 10% off Annual service for life
Please see Terms and Conditions that apply.
🛡️ The Descend Again Guarantee Every piece of certified equipment has been fully rebuilt and thoroughly tested. We offer a 30-day return window if the equipment does not match this inspection report.
