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