Z3 ZIRCONIUM REGULATOR ATOMIC AQUATICS SIGNATURE FEATURES Divers on a budget can experience virtually the same easy, natural breathing and corrosion-resistance as the entire Atomic regulator line. The performance is delivered from patented Atomic exclusives including the Jet Seat piston and AFC. The economy is achieved from exclu-sive use of Zirconium-plated Brass materials. ALL BLACK PATENTED COMFORT SWIVEL When you turn your head to look at something interesting, you'll look great doing it with the uniquely all-black Atomic Comfort Swivel. This exclusive Atomic design allows 30deg rotational movement without hose pulling, binding or kinking. The Z3 version is precision-machined Brass with black PVD coating. (US Patent No. 7,188,869) PATENTED AUTOMATIC FLOW CONTROL The Venturi effect inside a second stage makes it breathe easy, and the Atomic AFC eliminates the manual adjustment normally needed to regulate Venturi effect as you dive deeper. No dials to turn or buttons to push. A Rapid Adjustment Knob is included for special situations like surf entry or octo use. (US Patent No. 5,678,541)