Atomic Aquatics B2 Regulator, DIN Sealed with Color Kit and Z2 Octo Scuba Diving Package

The Atomic Aquatics B2 Regulator, DIN sealed with color kit, pairs the trusted second-stage design of the T3 with a robust first stage to deliver smooth, reliable breathing across scuba and diving environments. Built for underwater performance in saltwater and mixed-gas scenarios, this regulator system remains approachable for divers while maintaining high-end durability and steady airflow.

Designed for practical use in underwater gear setups, the B2 emphasizes corrosion resistance, tuning stability, and easy maintenance. Its configuration supports reliable operation across depth changes, tank pressures, and surf entries, with options to customize its look through an optional color kit.

• Chrome-plated Brass and 316 Stainless Steel construction for rugged longevity in saltwater diving environments.
• Atomic exclusive balanced Jet Seat high-flow piston for smooth breathing.
• Optional factory-sealed configuration 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 for versatile hose routing.
• All-Titanium construction and materials — same lineage as the T3 for lightweight strength and corrosion resistance.
• Pneumatically-balanced poppet, high-flow case and lever design for easy breathing at all depths and tank pressures.
• Patented Atomic AFC — Automatic Flow Control for stable performance across depth changes.
• Soft overmolded Rapid Adjustment Knob for manual detuning in special situations such as surf entries or octo use.
• 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 the 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 — comfortable and durable for extended dives.
• Z2 Octopus: second-stage components are brass with zirconium plating and titanium for robust performance.
• Atomic Seat Saving Orifice (Titanium) and Atomic AFC for reliable flow control.
• New high-flow second-stage case lowers breathing effort at any depth—from shallow water to deeper dives.
• Optional color kit available to customize the look of your underwater gear.