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Open Box Atomic Aquatics Z3 Second Stage only, 32" hose, Black

Atomic  |  SKU: AT-02-0390-3P-S+LN
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Condition Note

May be missing original packaging and minor blemishes (not noticeable after 1-2 dives). This product does not carry a valid manufacturer warranty.

Product Conditions

  • Open Box: Generally unused, returned from a customer, with minor blemishes that are not noticeable. Original packaging may be damaged or missing.
  • Like New: May be slightly used but looks almost new, with minor blemishes that are not noticeable. Original packaging may be damaged or missing.
  • Very Good: Shows signs of use with a few more blemishes. Original packaging may be damaged or missing.
  • Good: Shows more signs of use with noticeable blemishes. Original packaging may be damaged or missing.
  • Acceptable: Heavily used with more blemishes. Original packaging may be damaged or missing.

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Product Information

The Z Series Second-Stage is a Balanced Linear Flow Design for Extremely Easy Breathing at all Depths and Dive Conditions. The Z Series Second-Stage is Built-to-Last with a Zirconium Plated Brass Demand Valve Body, Titanium Lever and Sealing Orifice. The Diaphragm is made from High Quality Silicone Rubber. This Pneumatically-Balanced Poppet Second-Stage has Atomics Patented Seat Saving Dynamic Orifice which unlike most Second-Stage Orifices is a Floating Valve Design which Reduces Wear on the Second-Stage Poppet Seat when the Regulator is not pressurized adding Life to this Important Seal.

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Frequently Asked Questions

Does the Z3 second stage include a first stage regulator?

No, this listing is for the second stage only, with a 32-inch hose in black. It is sold as a component designed to pair with a compatible first stage you already own or purchase separately, not as a complete first-stage-and-second-stage regulator system.

What hose length and color does this Z3 second stage come with?

This version of the Z3 second stage comes with a 32-inch hose in black. It is built with a zirconium-plated brass demand valve body and a titanium comfort swivel.

How does the jet seat system reduce maintenance on this regulator?

The Z3 uses a unique jet seat system designed to minimize routine service needs. Combined with the freeze-protected, factory-sealed design, this helps the second stage maintain dependable operation across a variety of dive conditions with less frequent servicing required.

What technology helps the Z3 second stage breathe easily at depth?

The Z3 uses AFC (Automatic Flow Control) technology along with a Balanced Linear Flow Design to support easy, predictable breathing at all depths and across varying dive conditions. The titanium comfort swivel adds smooth hose movement during use.