"This reg also received the highest score for Ease of Breathing..." Scuba Diving Magazine
ATOMIC Quality
Exceeds all expectations
Made with a combination of stainless steel and titanium
Stainless Steel delivers virtually the same corrosion resistance as Titanium at a lower price
Stainless Steel does not require protective chrome or nickel plating processes that can be harmful to the environment and is 100% recyclable
The ST1 second stage features all-Titanium components as in the T2 and B2 models
Environmentally conscious topside...natural breathing at depth
The first stage is beautifully machined from a special grade 316 Stainless Steel that is twice the strength of brass with corrosion-resistance approaching Titanium
The use of Stainless Steel means we are doing our part for clean air when divers are out of the water
The legendary Atomic design means divers also breathe easy at depth
First stage machined from solid 316 Stainless Steel
Atomic Jet Seat high-flow piston first stage
Nitrox ready for mixtures up to 40%
Freeze protected factory-sealed first stage also prevents contamination such as silt and sand
First stage ports: 2 HP fixed / 5 LP on swivel cap
Available in DIN or YOKE
All-Titanium second stage construction same as Atomic T2 and B2 models
Patented Atomic Seat Saving Orifice (Titanium)
Patented Atomic Automatic Flow Control (AFC)
All-stainless steel Atomic Comfort Swivel standard
A new high-flow second stage case 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 tabs
Wide exhaust deflector to disperse bubbles for enhanced visibility
2 year/300 dive service interval
Limited Lifetime Warranty - not contingent on proof of service
What our Experts Think
Smooth, Reliable Breathing: ST1 2nd stage provides effortless airflow at various depths.