The Atomic B2 regulator, designed for ultimate comfort as the successor to the renowned Atomic B1. Celebrated for its performance and ergonomics, the B2 shares the first and second stage design of the T1, but with an all-titanium second stage and a compact, high-performance chrome-plated brass and type 316 stainless steel first stage.Featuring a balanced flow-thru piston with Atomic's jet seat high-flow stainless steel piston and an exclusive self-lubricating high-pressure seal system, the B2 ensures low friction and maintenance. The innovative conical seat and blunt end piston design offer exceptional reliability, allowing for 2 years or 300 dives without service. Experience superior diving performance, even at low tank pressure.The B2's factory-sealed first stage provides freeze protection and prevents contamination. Nitrox ready for up to 40% mixtures, the first stage includes 2 high-pressure and 5 low-pressure ports.The B2's second stage boasts a balanced linear flow design for easy breathing at all depths and conditions. Built with a titanium demand valve body, lever, and sealing orifice, as well as a high-quality silicone rubber diaphragm, this pneumatically-balanced poppet second stage features Atomic's patented seat-saving dynamic orifice for extended seal life.The ST12 series second-stage regulator is equipped with Atomics patented automatic flow control (AFC). This unique diaphragm activated vain automatically controls the flow and venturi-effect of the second-stage for optimum breathing resistance at all depths. The second-stage does have a soft over molded rapid adjustment knob for rare special situations. If you have ever experience the pulling effect" of the regulator second-stage when you turn your head underwater, those days are gone with Atomics comfort swivel. Perhaps one of the most admired features of Atomic second stages is the patented comfort swivel which allows 30° rotational movement without binding or kinking. The regulator comes equipped with a 3/8" threaded 32" (81.3cm) low-pressure hose.
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