Atomic Aquatics T3 Second Stage only, 32" hose, Gray
In stock — ships from Irvine, CA
This item is currently on backorder. Order now to reserve yours, and we will ship it as soon as it is back in stock.
Atomic Aquatics T3 Second Stage only, 32" hose, Gray is backordered and will ship as soon as it is back in stock.
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Open Box Atomic Aquatics T3 Second Stage only, 32" hose, Gray
Sale price $599.95 Regular price $749.95Unit price
Product Information
The Atomic Aquatics T3 Second Stage, sold here in gray with a 32-inch low-pressure hose, is a standalone replacement or spare second stage. It uses a pneumatically-balanced poppet design together with Atomic's patented Automatic Flow Control (AFC) venturi system, and its core components, the demand valve body, lever and sealing orifice, are machined from titanium.
Who it is for
This second stage suits recreational and technical divers who already own an Atomic T3 first stage and need a dedicated or backup second stage, instructors who like to keep a spare stage on hand for students, and divers assembling a custom T3 regulator configuration.
Key details
- Hose: 32-inch low-pressure hose in gray, attached to the second stage
- Second-stage design: pneumatically-balanced poppet with Automatic Flow Control (AFC), a venturi-based system that removes the need for a manual venturi switch
- Comfort Swivel: titanium with Black PVD coating, rotates 30 degrees, patented (US Patent #7,188,869)
- Exhaust valve: elliptical shape to reduce exhalation effort at depth
- Mouthpiece: dual silicone comfort-fit design with tear-resistant bite tabs
- Cover: dual material front cover so the full face can be used as the purge button
- Materials: titanium demand valve body, lever and sealing orifice
- Service interval: 3 years or 300 dives per Atomic Aquatics
Compatibility and sizing
This second stage is part of Atomic Aquatics' T3 regulator line, which pairs with a T3 first stage offered in DIN Sealed or Yoke Sealed configurations. It comes with a 32-inch low-pressure hose that threads onto a compatible first stage's LP port.
DiveCatalog.com is an authorized Atomic Aquatics dealer and a dive shop in Irvine, California, open since 2003. Call 888-701-4017 or start a chat with us if you have questions about fit or compatibility with your current regulator setup.
- 32-inch low-pressure hose: Included in gray, ready to connect to a compatible first stage LP port.
- Pneumatically-balanced poppet: Second-stage design that helps maintain steady airflow across depths and workloads.
- Automatic Flow Control (AFC): Patented venturi-based system that eliminates the need for a manual venturi adjustment.
- Titanium demand valve body, lever and sealing orifice: Built for long-term durability in saltwater environments.
- Titanium Comfort Swivel: Black PVD coating with 30 degree rotation, protected by US Patent #7,188,869.
- Elliptical exhaust valve: Shaped to reduce exhalation effort at depth.
- Dual silicone comfort-fit mouthpiece: Features tear-resistant bite tabs.
- Soft overmolded rapid adjustment knob: Allows manual detuning when needed.
- Dual material second-stage cover: Lets the entire front face double as the purge button.
| Second Stage Design | Pneumatically-balanced poppet |
| Flow Control | Automatic Flow Control (AFC), venturi-based, no manual adjustment needed |
| Hose Length | 32 inches (low-pressure hose) |
| Color | Gray |
| Comfort Swivel | Titanium, Black PVD coating, 30 degree rotation, US Patent #7,188,869 |
| Exhaust Valve | Elliptical design |
| Mouthpiece | Dual silicone comfort-fit with tear-resistant bite tabs |
| Demand Valve Body, Lever, Sealing Orifice | Titanium |
| Front Cover | Dual material, PVD-coated metal accent ring |
| Service Interval | 3 years or 300 dives |
| Warranty | Limited Lifetime Warranty; metal parts warranted against corrosion for life; second-stage components such as mouthpiece and hose covered for 3 years |
| MPN | AT-02-0420-3P-S |
⚠️ 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.
