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.

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 in  2 HP fixed / 7 LP on fixed cap

• 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