Atomic Aquatics M1 2nd 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 M1 2nd 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 M1 2nd Stage only, 32" hose, Gray
Sale price $383.95 Regular price $479.95Unit price
Product Information
The Atomic Aquatics M1 2nd Stage is a gray, 32-inch hose second stage regulator built around a pneumatically-balanced poppet design and Atomic's patented AFC (Automatic Flow Control), giving a diver a dedicated replacement or spare second stage with a soft overmolded Rapid Adjustment Knob for manual detuning.
Who it is for
This second stage is for divers who need a standalone M1 second stage, such as a backup, a replacement, or an addition to an existing M1 setup. It also suits divers who want cold-water performance, since the second stage includes a thermal heat sink and a super-dry exhaust valve built for that purpose.
Key details
The M1 second stage uses a precision-machined brass body with zirconium plating, titanium components, and a patented stainless steel Seat Saving Dynamic Orifice. A high-flow case and lever design, a surge-protected front cover, and a super-wide exhaust deflector support steady breathing, while a dual silicone comfort-fit mouthpiece with tear-resistant bite tabs rounds out the second stage. It comes with a 32-inch hose, a Comfort Swivel, and is finished in gray.
- Hose length: 32 inches
- Color: Gray
- Flow control: Patented AFC with Rapid Adjustment Knob
- Service interval: 2 years or 300 dives
DiveCatalog.com is an authorized Atomic Aquatics dealer and a dive shop in Irvine, California since 2003. Call or chat with us at 888-701-4017 if you have questions about hose length, fit, or compatibility with your current regulator setup.
- 32-inch hose included for extended reach and a flexible underwater setup.
- Patented Atomic AFC (Automatic Flow Control) supports steady, balanced breathing.
- Soft overmolded Rapid Adjustment Knob allows manual detuning of airflow.
- Pneumatically-balanced poppet second stage delivers consistent performance across dive conditions.
- Thermal heat sink and super-dry exhaust valve are built for cold-water performance.
- Patented Stainless Steel Seat Saving Dynamic Orifice protects the seat for long-term reliability.
- Precision-machined brass body with zirconium plating and titanium components adds corrosion resistance.
- High-flow case and lever design is optimized for breathing at depth and under pressure.
- Surge-protected front cover guards against high-current scenarios.
- Super-wide exhaust deflector disperses exhaled bubbles.
- Dual silicone comfort-fit mouthpiece has tear-resistant bite tabs.
- Comfort Swivel included.
| Brand | Atomic Aquatics |
| Model | M1 Second Stage |
| Product Type | Second stage only |
| Hose Length | 32 in |
| Color | Gray |
| Flow Control | Patented AFC with Rapid Adjustment Knob |
| Swivel | Comfort Swivel |
| Demand Valve Body | Precision-machined brass with zirconium plating |
| Additional Materials | Titanium components; stainless steel Seat Saving Dynamic Orifice |
| Mouthpiece | Dual silicone comfort-fit with tear-resistant bite tabs |
| Service Interval | 2 years or 300 dives |
| Warranty | Limited lifetime on metal parts against corrosion; other components covered 2 years (registration card must be returned within 30 days of purchase) |
| MPN | 02-0100-3P-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
What hose length does the Atomic Aquatics M1 second stage come with?
This M1 second stage ships with a 32-inch hose, is finished in gray, and includes a Comfort Swivel.
How often does the Atomic M1 second stage need to be serviced?
Atomic Aquatics specifies a service interval of 2 years or 300 dives for the M1 regulator line. Routine servicing keeps the balanced poppet and AFC flow control performing as designed.
What warranty covers the Atomic Aquatics M1 second stage?
Atomic Aquatics backs the M1 with limited lifetime coverage on metal parts against corrosion, plus a 2-year warranty on other components. Coverage requires returning the warranty registration card within 30 days of purchase.
Is the Atomic M1 second stage built for cold-water diving?
Yes. The M1 second stage includes a thermal heat sink and a super-dry exhaust valve, both built for cold-water performance. These components are part of the second stage's design to support smooth breathing as water temperature drops.
