Our top performing balanced piston first stage, paired with our S555 air balanced second stage, is the ideal choice for a diver wanting a high performance yet simple to operate system, remarkably durable and reliable.
S555 is a compact and lightweight air balanced second stage marrying advanced breathing performance with a captivating design. It increases fun and relaxation on every dive because it initiates air flow effortlessly and instantly on demand, independent of the tank pressure. As with all of the X and S series second stages, S555 features a super-flow hose for smooth air delivery.
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