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Here are Similar First & Second Stages:
Review Summary
Balanced Flow-Through Piston
Seven 3/8" Ports
Two 7/16" Ports
Yes, Flow Control Knob
Yes, Up to 40%
Pneumatically-Balanced
First-Stage: Chrome Plated Brass & 316-Grade Stainless Steel
Second-Stage: Demand Valve Body Zirconium Plated Brass
Lever & Sealing Orifice Titanium
Diaphragm Silicone
3/8"
32" (81.3cm)
2.3 lbs. (1,070 g)
882689087219
The Atomic Aquatics Z2 is an affordable, compact regulator system that outperforms even the priciest competitors. Built on the B1/T1 platform, it features a balanced flow-thru piston design and self-lubricating high-pressure piston seal for low maintenance. Its unique jet seat system has no sharp edges, ensuring longevity and reliability. With a 2-year or 300-dive service interval, this regulator performs exceptionally even at low tank pressures.
The Z2's freeze protection and factory-sealed first stage prevent contaminants like silt and sand from entering the valve mechanism. Nitrox-ready up to 40% out of the box, it has 2 high-pressure and 7 low-pressure ports.
The second stage features a balanced linear flow design, ensuring easy breathing at all depths and conditions. Its durable construction includes a Zirconium plated brass demand valve body, titanium lever, sealing orifice, and high-quality silicone rubber diaphragm. The patented seat-saving dynamic orifice extends the life of the second-stage poppet seat when not pressurized.
Equipped with Atomic's patented automatic flow control (AFC), the second stage optimizes breathing resistance at all depths. A soft over-molded rapid adjustment knob is available for special situations. The regulator comes with a 3/8" threaded 32" low-pressure hose, weighs 2.3 lbs., and includes an owner's manual. Enjoy the Atomic Aquatics Z2's superior performance, durability, and value in a friendly, informative, and English-speaking setting.