The Atomic ST1 regulator is the perfect combination of affordability and maximum durability. Constructed of 316 Stainless Steel, the ST1 first stage is designed for the demanding diver. With twice the strength of traditional brass, the Stainless Steel construction is also better for the environment and is 100% recyclable.

Like the Atomic T3 and Atomic B2, the ST1 second stage is constructed with all Titanium components. The patented Atomic seat saving orifice also means you will enjoy greater reliability. With a 2-year, 300 dive service schedule, the Atomic ST1 regulator comes with the Atomic limited lifetime warranty.

If you are a demanding diver who often dives in saltwater or other harsh environments, the Atomic ST1 regulator is the perfect choice for your life support system. Order yours today!

Key Features

• 316 Stainless Steel first stage construction
• Rapid adjustment knob for manual second stage de-tuning
• Patented Atomic Seat Saving Orifice
• Patented Atomic Automatic Flow Control (AFC)
• Nitrox ready to 40% O2
• 1st and 2nd stage weight of only 1.7 lbs. (yoke version)
• Limited Lifetime Warranty

First Stage

• Factory-sealed first stage to prevent outside contamination such as silt and sand and prevent freezing (standard)
• 316 Stainless Steel construction for maximum corrosion resistance
• Ports: 2 HP fixed/5 LP on swivel cap

Second Stage

• New high-flow second stage case that significantly lowers breathing effort at any depth from shallow water to beyond the limits
• Dual material second stage cover enables entire front to be used for purge
• Dual silicone comfort fit mouthpiece with tear-resistant bite tab