Zeagle F8 Scuba Diving Octopus (Safe Second)
By Zeagle | Part # 320-8310 | Pneumatically Balanced Performance | Zirconium-Plated Heat Sink | 36" High-Flow Yellow Hose
Provide your buddy with uncompromised breathing performance during an out-of-air emergency with the Zeagle F8 Octopus (Part # 320-8310). Incorporating the exact same precision pneumatically balanced internal mechanism as Zeagle's flagship F8 primary regulator, this safe second stage delivers effortless, low-work-of-breathing gas delivery across all sport and technical diving depths.
The F8 Octopus is built to withstand cold Pacific Northwest waters, featuring a redesigned heat-sink system with zirconium plating over the internal valve mechanism to disperse the chill of expanding gas. Outfitted with a high-visibility yellow purge cover and an extra-long 36-inch (91 cm) flexible yellow low-pressure hose, the F8 is immediately identifiable on your BCD and ready for immediate deployment.
Primary-Regulator Breathing & Cold-Water Heat Sink
Unlike standard backup octos that offer stiff, detuned breathing, the F8 features a fully balanced downstream poppet, an adjustable inhalation resistance knob, and a dive/pre-dive venturi control switch. Its zirconium-plated inlet tube and valve body maximize heat transfer from surrounding ambient water, dramatically reducing freeze risk in cold waters.
Key Features and Highlights
- Pneumatically Balanced Downstream Demand Valve: Delivers consistent, featherlight inhalation regardless of cylinder pressure or operational depth.
- Zirconium-Plated Internal Heat Sink: Advanced metal plating on the inlet tube and valve body provides exceptional corrosion resistance and superior thermal transfer to prevent freezing in cold water.
- Diver-Tuned Adjustments: Includes both an ergonomic dive/pre-dive venturi lever (to stop nuisance surface free-flows) and an external micro-adjust inhalation resistance knob.
- High-Visibility Emergency Yellow Accents: Molded neon yellow front purge cover and yellow flexible hose ensure immediate visual identification during gas-sharing emergencies.
- Redesigned Exhaust Deflector: Sleek teardrop exhaust tee routes exhalation bubbles smoothly away from your field of view while sliding easily into BCD retention pockets.
- Extra-Long 36" Hose Included: High-flow 3/8"-24 UNF 36-inch low-pressure hose provides generous reach and comfortable donor positioning during assisted ascents.
Technical Specifications
| Brand / Manufacturer | Zeagle |
| Model Name | F8 Octopus (Safe Second) |
| Manufacturer Part Number | 320-8310 |
| Valve Design | Pneumatically Balanced Downstream Demand Valve |
| Internal Plating / Thermal System | Zirconium-Plated Brass Inlet Tube & Heat Sink |
| User Controls | Inhalation Effort Adjustment Knob & Dive / Pre-Dive Venturi Switch |
| Hose Type & Length | 36" (91.4 cm) High-Flow Low-Pressure Hose (3/8"-24 UNF Thread, Neon Yellow) |
| Mouthpiece | Orthodontic High-Grade Black Silicone Mouthpiece |
| Gas Compatibility | Factory Nitrox ready up to 40% O2 |
| Best For | Cold-Water Scuba, Technical Backup, and Pairing with Zeagle F8 / Envoy II Regulators |
Order online for fast coast-to-coast Canadian shipping or visit International Diving Centre at 2865 West Broadway, Vancouver, BC. Call us at (604) 736-2541 to have our factory-trained technicians pair this octo with your primary regulator or fine-tune intermediate pressures on our bench tester!
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