Engineered for divers who demand durability, performance, and precision, the Atomic Aquatics ST1 Regulator combines stainless steel strength with titanium performance for effortless breathing at any depth. Precision-machined from solid 316 stainless steel, the ST1 delivers exceptional corrosion resistance and long-term reliability while maintaining a sleek, polished finish built to withstand harsh marine environments.

At the heart of the ST1 is Atomic Aquatics’ balanced Jet Seat high-flow piston first stage, designed to provide consistent airflow and stable intermediate pressure throughout the dive. Its environmentally sealed system protects the internal components from contaminants like sand, salt, and silt, ensuring reliable performance in both warm and cold water conditions. The regulator’s pneumatically balanced second stage incorporates titanium components and Atomic’s patented Seat Saving Dynamic Orifice, helping maintain precise tuning and extending the life of critical sealing surfaces. Combined with Automatic Flow Control (AFC), the regulator automatically optimizes airflow at varying depths for smooth, effortless breathing. Comfort is enhanced with the patented Atomic Comfort Swivel hose, allowing a 30° range of motion to reduce jaw fatigue and hose pulling. A rapid adjustment knob enables divers to fine-tune inhalation resistance in challenging conditions such as surf entries or when using the regulator as an octopus.

Nitrox-ready up to 40% oxygen and has a service interval of 2 years/ 300 dives, the ST1 regulator is built to deliver uncompromising performance for recreational and advanced divers alike.