Aqualung Helix Pro Dive Regulator | Scuba Diving Regulator Set w/Auto Closure Device & Cold Water Dry Chamber | Balanced Diaphragm First Stage & Pneumatically Balanced Second Stage

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AUTO CLOSURE DEVICE PROTECTION - The Aqualung Helix Pro Regulator is equipped with ACD technology that keeps the inlet shut; This seals internal parts from corrosive water and debris when off the cylinder, extending the life of your dive regulator and preserving lubrication
COLD WATER PERMANENT DRY CHAMBER - Built for cold water scuba diving, the first stage features an environmentally sealed dry chamber to prevent ice formation; Combined with a balanced diaphragm and second stage heat exchanger, this water sports gear delivers elite performance in any water
PNEUMATICALLY BALANCED BREATHING - Experience effortless underwater breathing at any depth with Helix Pro; The over-balanced first stage and pneumatically balanced second stage include a Venturi adjustment switch to prevent freeflow, making this scuba regulator set incredibly reliable
COMFOBITE ORTHODONTIC MOUTHPIECE - The orthodontic Comfobite mouthpiece with palate bridge reduces jaw fatigue during extended bottom times; Made from hypoallergenic silicone with a tool-free reusable clip for easy replacement; Flexible braided hose provides superior routing comfort
OPTIMIZED PORTS & NITROX READY - Perfect your scuba gear setup with 2 HP and 4 MP ports oriented for streamlined hose routing; Ready for enriched air nitrox diving up to 40% O2 right out of the box, offering unmatched value and durability for years to come

Product Description

AQUALUNG HELIX PRO DIVE REGULATOR: The Aqualung Helix Pro Dive Regulator delivers elite technical performance in a durable, mid-range package. Engineered with Aqualung's Auto Closure Device (ACD), the balanced diaphragm first stage automatically seals when detached from the cylinder, preventing corrosive water, salt, and debris from contaminating internal components. This extends service intervals and preserves critical lubrication for long-term reliability. A permanent environmental dry chamber provides superior performance for cold-water scuba diving by isolating the mechanism from moisture and ice formation. Combined with an over-balanced first stage and pneumatically balanced second stage, the Helix Pro delivers effortless underwater breathing at any depth with a low work of breathing rated at just 0.95 j/L. The second stage features a Venturi adjustment switch to prevent freeflow in strong currents, plus a Comfobite orthodontic mouthpiece with a palate bridge to reduce jaw fatigue. Flexible braided hose routing and a T-shaped port configuration ensure a streamlined scuba gear setup. Nitrox compatible up to 40% O2 right out of the box, the Helix Pro regulator set offers exceptional value, Aqualung durability, and confident performance dive after dive. WHAT'S IN THE BOX: - Helix Pro Dive Regulator; - Lip Shield; - User Manual.