Atomic M1 Octopus

  • Atomic M1 Octopus
  • Atomic M1 Octopus

Atomic M1 Octopus



Most manufacturers produce just an economy and a performance octopus model. Yet, even their high-end octopus cannot come close to matching the performance of the Atomic safe seconds. Each Atomic Octopus is designed, and precision built to perform as perfectly as its primary model counterpart. So, when you need it, you know exactly what to expect.

The M1 Safe Second is factory rated for oxygen enriched mixtures up to 80%. The demand valve body is zirconium plated brass for fast thermal transfer with a heat sink feature to reduce the possibility of freezing in cold water. The critical metal components of the demand valve are all made of titanium or 316 stainless-steel and are completely corrosion proof. The front cover is designed to limit sensitivity to currents and swift moving water.

  • Specifications
  • Reviews


  • Atomic M1 Octopus, Yellow:
  • Precision-Built to Perform-as-Perfectly as Primary Model
  • Factory-Rated for Oxygen-Enriched Mixtures Up to 80%
  • Demand Valve Body:
    Zirconium Plated Brass
    Fast-Thermal Transfer with Heat Sink Feature
    Reduces Possibility of Freezing in Cold Water
  • Critical Metal Components of Demand Valve:
    Titanium or 316 Stainless Steel
  • Front Cover: Limits Sensitivity to Currents and Swift-Moving Water
  • Diaphragm: High Quality Silicone Rubber
  • Pneumatically-Balanced Poppet Second-Stage
  • Atomics Patented Seat Saving Dynamic Orifice
  • Orifices is a Floating Valve Design, Reduces Wear on Second-Stage Poppet Seat
  • Atomics Patented Automatic Flow Control (AFC)
  • AFC:
    Unique Diaphragm Activated Vain
    Automatically Controls Flow & Venturi-Effect
    Optimum Breathing Resistance at All Depths
  • Rapid Adjustment Knob: Manual Second Stage De-Tuning in Rare Special Situations
  • Bright Yellow Front Cover for Easy-Identification in Out-of-Air-Emergency
  • Dual Silicone Comfort Fit Mouthpiece with Tear-Resistant Bite Tabs
  • 36" (91.4 cm) 3/8" Threaded Low Pressure (LP) Hose
  • Weight: 13.8 oz. (391 g) with LP Hose