COMFORT. PERFORMANCE. STYLE. AND VALUE. 

Our most popular regulator, the Atomic B2 system combines the signature second stage design and materials of the T3 with a Chrome-plated Brass first stage. The result is an incredibly high-performance regulator system that is approachable for every diver and every budget.

LIGHTWEIGHT WITH HEAVYWEIGHT PERFORMANCE 

The B2 weighs just 2.5 pounds (yoke version), just 9 ounces more than the super lightweight T3. 

B2 FIRST STAGE FEATURES 

Chrome-plated Brass and 316 Stainless Steel 

Atomic exclusive balanced Jet Seat high-flow piston. 

Optional factory-sealed to prevent outside contamination from silt and sand. 

Nitrox ready – approved for non-dedicated EAN use with mixtures up to 40%. 

Ports: 2 HP fixed / 5 LP on swivel cap 

B2 SECOND STAGE FEATURES 

All-Titanium construction and materials – same as the T3. 

Pneumatically-balanced poppet, high-flow case and lever design for easy breathing at all depths and tank pressures. 

Patented Atomic AFC – Automatic Flow Control. 

Soft overmolded Rapid Adjustment Knob for manual detuning in special situations such as surf entries or octo use. 

Patented Atomic Titanium Seat Saving Dynamic Orifice maintains crisp like-new factory tuning and prevents damage during storage. 

Hose features patented polished 316 Stainless Steel Atomic Comfort Swivel with Black PVD coating. 

Dual material second stage cover enables entire front to be used for purge. 

Elliptical exhaust valve dramatically reduces exhalation effort at depth. 

Dual silicone comfort fit mouthpiece with tear-resistant bite tabs – both comfortable and durable. 

Optional color kit available.