Patented Atomic “Seat Saving” Orifice (Titanium) Patented Atomic Automatic Flow Control (AFC) Soft overmolded Rapid adjustment knob for manual second stage de-tuning in special situations All-Titanium Atomic Comfort Swivel standard on all T3 regulators with Black PVD coating High-flow second stage case and magnum lever design that significantly lowers breathing effort at any depth from shallow water to beyond the limits. Dual material second stage cover enables entire front to be used for purge Dual silicone comfort fit mouthpiece with tear-resistant bite tabs Metal-accented front cover ring Deluxe padded travel bag 3 year / 300 dive service interval Limited Lifetime metal parts Warranty – not contingent on proof of annual service Combined weight of the Atomic T3 First & Second Stage is under 1.7 lbs. (yoke version)