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Open Box Atomic Aquatics T3 Second Stage only, 32" hose, Gray

Atomic  |  SKU: AT-02-0420-3P-S+OB
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Sale price $599.95 Regular price $749.95
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In stock — ships from Irvine, CA



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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: This product is Open Box. It is generally unused, either returned by a customer or displayed in our showroom, and may have minor, unnoticeable blemishes. Original packaging may be damaged or missing.


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Product Information

Atomic Aquatics T3 Second Stage only, 32" hose, Gray

⚠️ 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 Atomic Aquatics T3 Second Stage come with a hose?

Yes, this listing includes the T3 second stage with a 32-inch low-pressure hose in gray, so no separate hose purchase is needed.

What first stage does this T3 second stage work with?

It is built as part of Atomic Aquatics' T3 regulator line, which pairs with a T3 first stage offered in DIN Sealed or Yoke Sealed versions. If you are matching it to a different first stage, call or chat with DiveCatalog.com to confirm port and hose fit before ordering.

How often does the T3 second stage need to be serviced?

Atomic Aquatics rates the T3 for a 3-year or 300-dive service interval, whichever comes first.

Is manual venturi adjustment needed on the T3 second stage?

No. The T3 uses Atomic's patented Automatic Flow Control (AFC) system, which relies on the venturi effect to manage airflow automatically, so there is no manual venturi switch to adjust during a dive.