Z2 Regulator
Z2 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 Aquatics regulator line. The performance is delivered from patented Atomic Aquatics exclusives including the Jet Seat piston and AFC. The economy is achieved from exclusive use of Zirconium-plated Brass materials.

PATENTED AUTOMATIC FLOW CONTROL
The Venturi effect inside a second stage makes it breathe easy, and the Atomic Aquatics 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)
Jet Seat Piston
The Atomic Jet Seat system has no sharp edges that can damage the seat over time, like most competitor’s first stages. Instead, Atomic employs a conical seat and blunt-end piston. Atomic valve seats are precision machined from an extremely strong aerospace specification seat material. This design combination is the most reliable seat system in the industry and enables the seat to go 2-years or 300 dives without service. Diving performance is superior at even low tank pressure.
LIGHTWEIGHT AND PERFECT FOR TRAVEL.
The Z2 packs a lot of performance into a 2.6 pound package (yoke version).
Z2 FIRST STAGE FEATURES
- Chrome-plated Brass and 316 Stainless Steel
- Atomic Aquatics exclusive balanced Jet Seat high-flow piston.
- Optional factory-sealed to prevent outside contamination from silt and sand.
- Nitrox ready – approved for non-dedicated EAN use with mixtures up to 40%.
- Ports: 2 HP fixed / 7 LP on fixed cap.
Z2 SECOND STAGE FEATURES
- Precision-machined Brass with Zirconium plating and Titanium components.
- Pneumatically-balanced poppet, high-flow case and lever design for easy breathing at all depths and tank pressures.
- Patented Atomic Aquatics AFC – Automatic Flow Control.
- Soft overmolded Rapid Adjustment Knob for manual detuning in special situations such as surf entries or octo use.
- Patented Atomic Aquatics Titanium Seat Saving Dynamic Orifice maintains crisp like-new factory tuning and prevents damage during storage.
- Dual material second stage cover enables entire front to be used for purge.
- Elliptical exhaust valve dramatically reduces exhalation effort at depth.
- Dual silicone comfort fit mouthpiece with tear-resistant bite tabs – both comfortable and durable.

