Patented automatic flow control: Maintains stable breathing pressure at any depth without manual adjustments
Comfort swivel with 30° range of motion: Prevents hose pulling, kinking, and twisting for uninterrupted breathing
Dual material second stage case: Reduces breathing effort and enhances durability at all depths
Nitrox ready: Compatible with nitrox mixtures up to 40% for versatile diving
Optional factory sealed first stage: Protects against contamination and freezing for long-term reliability
Summarized by Shop
The Atomic Aquatics B2 Regulator blends the proven second-stage design of the T3 with a chrome-plated brass first stage, delivering dependable performance for scuba diving and underwater exploration. Built for divers at every level, the B2 pairs robust materials with straightforward operation to support reliable breathing across condition
First Stage Materials
Chrome-plated brass and 316 stainless steel
Second Stage Materials
All titanium
Weight
9 oz more than T2
First Stage Ports
2 HP fixed, 5 LP on swivel cap
Dive Service Interval
2 years (300 dives)
Warranty
Limited lifetime (not contingent on proof of service)
Summarized by Shop
5.0
2 ratings
5
4
3
2
1
Amazing Regulator! Easy breathing and light weight
Amazingly easy breathing and so light & comfortable in the mouth!
Absolutely phenomenal regulator that is so well worth it. Just be aware of the uniqueness when rinsing/soaking it. If you don't want to be careful that it doesn't just get tossed in a rinse bucket un-pressurized, this might not be the regulator for you. I do think it's worth that trade off.
And shout out for Dive Catalog. A fantastic online retailer with a great team, good communication, and super-fast shipping.
C
CG · July 25, 2026
Great product
Exceptional product and craftsmanship. I felt completely at ease underwater—perfect gear for beginners and seasoned enthusiasts alike.