Why Stainless Steel & 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.

First Stage:

• First stage machined from solid 316 Stainless Steel
• Atomic Jet Seat high-flow piston first stage
• Freeze protected factory-sealed first stage also prevents contamination such as silt and sand
• Nitrox ready for mixtures up to 40%
• First stage ports: 2 HP fixed / 5 LP on swivel cap

• All-Titanium second stage construction same as Atomic T2 and B2 models
• Patented Atomic Seat Saving Orifice (Titanium)
• Patented Atomic Automatic Flow Control (AFC)
• Rapid adjustment knob for manual second stage de-tuning in special situations
• 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
• 2 year / 300 dive service interval
• Limited Lifetime Warranty – not contingent on proof of service
• Wide exhaust deflector to disperse bubbles for enhanced visibility