Ocean Reef Neptune III System
Ocean Reef Neptune III System - YOKE / Black / ML (Medium Large) is backordered and will ship as soon as it is back in stock.
Pickup currently unavailable at 23D
The Neptune Space is available in two sizes, Small/Medium and Medium/Large.The sizing and measuring system were designed in accordance with the official measuring procedure used in the Los Alamos Scientific Laboratory Charts at the SBCCOM Mask Fit Facility-Aberdeen Proving Ground (Maryland, USA). Before purchasing a mask, the customer may use the calliper to take two simple face measurements. Using the Full Face Mask Size Recommendation Chart, he or she can evaluate the size category into which the measurements fall. There are three different size categories on the chart: Small/Medium, Both, & Medium/Large. If the measurements fall within the both category, then the diver should technically be able to wear either full face mask (M/L or S/M), and in that case should try on a mask to select the best fit. Please note that the chart boundaries fade. The fading areas represent less common face measurements. It is very likely that a mask will still fit comfortably even if measurements are located in these fading areas.
Ocean Reef Neptune III System - YOKE / Black / ML (Medium Large) is backordered and will ship as soon as it is back in stock.
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Description
Description
Ocean Reef Neptune III System combines a Neptune III Full Face Mask IDM with rugged design for scuba diving, delivering comfort and safety in the water. The mask offers a panoramic field of view and a secure seal, optimized for varied diving conditions and a robust gear setup. It is built for durability in challenging environments and suits unisex, adult divers across multiple sizes and colors, with a first-stage option to support different air configurations.
The package includes everything needed to dive with confidence: a Neptune III Full Face Mask IDM with Backpack, a first stage, a standard hose, a QRS (Quick Removal System) doffing handle, and the Extender Kit with frame and accessories (frame already mounted).
Features
Features
- Neptune III Full Face Mask IDM included & Backpack
- First stage included
- 1 - standard hose
- QRS - Quick Removal System doffing handle
- The full Extender Kit (frame + accessories - frame is already mounted)
- Unisex, adult sizing
Payment & Security
Payment methods
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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
Why dive with a full-face mask like the Ocean Reef Neptune III?
A full-face mask integrates the second stage regulator into the mask, so there is no mouthpiece to bite and no regulator to lose — you breathe naturally through your nose and mouth, which many divers find far more comfortable and less fatiguing, especially on long or cold dives. The six-strap harness holds it securely, the field of view is wide, and because your mouth is free, the mask is ready for underwater communication systems. It is popular for cold water, public safety, and any diver who wants a more relaxed breathing experience.
What comes with the Ocean Reef Neptune III full-face mask?
The Neptune III includes the mask with its integrated second stage, the backpack (six-strap harness assembly), a one-hand quick-release doffing handle, a surface air valve that lets you breathe ambient air at the surface without wasting tank gas, the standard hose, an extender kit (the accessory frame used to mount cameras, lights, or a communication unit), and a multitool for adjustments. You supply your own first stage, or step up to the Neptune III Package, which adds a first stage, octopus, gauge, and backup mask.
What size Ocean Reef Neptune III do I need?
The Neptune III comes in two sizes, measured by the distance from the bridge of your nose to the bottom of your chin: Small/Medium fits roughly 10–11.5 cm (smaller faces, many women, and children 12 and up), and Medium/Large fits above 11.5 cm. The right fit leaves no gap between your chin and the silicone skirt. If you are unsure, measure nose-bridge to chin and send us the number and we will confirm the size.
Is the Ocean Reef Neptune III certified and safe for cold water?
Yes — the Neptune III is CE marked as Category III PPE, compliant with the EN 250:2014 diving standard, cold-water rated for use below 10°C, and tested to 61 meters. A patented internal air-circulation system keeps the lens from fogging and continually flushes exhaled air to minimize CO2 buildup, and a built-in 3D equalization device lets you close your nostrils to equalize without breaking the mask seal. It is a properly certified full-face system, not a surface snorkel mask.
