Why Zirconium?
The “Z” designation is represented by the use of Zirconium as plating material for the precision machined Brass valve body. Atomic developed a Zirconium over Chrome over Brass plating process to deliver corrosion-resistance 3-4 times that of conventional chrome plating. The Z2x second stage lever, orifice and spring are Titanium.

Atomic Performance Plus Economy
Designing affordability doesn’t mean using shortcuts
The Z2 is our most compact and economical regulator system. But its rare combination of performance, ergonomics and materials is unmatched by competitors at any price. The Z2 gives divers the assurance of the same Limited Lifetime Warranty as all Atomic regulators.

First Stage:

• First stage materials are chrome plated Brass and 316 Stainless Steel
• Atomic Jet Seat high-flow piston first stage
• Optional factory-sealed first stage to prevent outside contamination such as silt and sand
• Nitrox ready for mixtures up to 40%
• First stage ports available:
      2 HP fixed / 5 LP on swivel cap

Second Stage:

• Second stage components are made of precision machined Brass with Zirconium plating and Titanium
• Z2x has a Brass Atomic Comfort Swivel
• Patented Atomic Seat Saving Orifice (Titanium)
• Patented Atomic Automatic Flow Control (AFC)
• Rapid adjustment knob for manual second stage de-tuning in special situations
• A new high-flow second stage case 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
• 2 year/300 dive service interval
• Limited Lifetime Warranty – not contingent on proof of service