Atomic B2 Regulator 1st Stage

Our most popular model with the perfect combination of comfort, performance and style. The B2 has a chrome plated brass first stage with a swiveling 5 port cap. Environmental sealing is optional for this system.

  • Compact size
  • Large, balanced flow-through piston design for stable intermediate
  • pressures and high performance at low tank pressures
  • Exclusive high-pressure piston seal system is self-lubricating for low friction
  • and low maintenance
  • Service to 4350 psi (300 Bar) with optional DIN connection
  • Optional environmental seal kit for freeze protection at low temperatures
  • Nitrox EAN ready to 40% O2 (M1: up to 80%) from the factory with no
  • internal modifications needed
  • CNC machined from solid bar material, the body maintains perfect alignment
  • of the piston and seat to eliminate creeping intermediate pressure problems
  • Two high-pressure and five low-pressure ports on swivel cap (T3/B2/ST1/M1)
  • Two high-pressure and option of five low-pressure ports on swivel cap or
  • seven low-pressure ports on fixed cap (Z2/Z2x)
  • All Atomic first and second stages are Made in USA with Limited Lifetime
  • Warranty, and 2 year/300 dive service interval