Ocean Reef Space Extender Mask Kit
Ocean Reef Space Extender Mask Kit - Black / S/M (Small / Medium) is backordered and will ship as soon as it is back in stock.
Pickup currently unavailable at In Store
Ocean Reef integrated dive mask sizing. Imperial in bold, metric underneath.
| Size | Nose bridge to chin in · cm |
|---|---|
| S/M |
3.9–4.5 10–11.5 |
| M/L |
>4.5 >11.5 |
How Ocean Reef measures
It is essential to choose a suitable size. You can choose between size S/M (for adults with smaller faces, women and children over 12 years old) and size M/L (for an adult male, or larger faces).
- Nose bridge to chin: Measure the distance between the bridge at the top of your nose and the bottom of your chin.
- Try-on: There are two different size categories on the chart: Small/Medium and Medium/Large. If the measurements fall within the both ranges, 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. Once the mask is tight on your face, if there is NO SPACE between your chin and the silicone skirt of the mask, you've got the right size.
Source: Ocean Reef’s size chart (original chart). Values in the second unit come from Ocean Reef’s own chart where it prints them.
Ocean Reef Space Extender Mask Kit - Black / S/M (Small / Medium) is backordered and will ship as soon as it is back in stock.
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Product Information
The Ocean Reef Space Extender is an Integrated Diving Mask (IDM) built on Ocean Reef's SPACE full-face mask platform, featuring a cold-water-certified, balanced, on-demand integrated regulator and a scratch-resistant polycarbonate visor. It ships with the Extender Kit already installed, giving the mask a mounting frame for cameras, lights, and communication gear right out of the box.
Who it is for
This mask is built for passionate divers, experienced adventurers, and diving professionals who want a full-face mask that can be personalized over time. The Extender frame's flat top surface and drilling-ready mounting surface let divers add an action or sport camera, communication earphones, or side lights as their setup evolves, making it a good fit for divers who already run comms or video gear or plan to add it later.
Key details
- Cold water certified, balanced, on-demand integrated regulator
- Polycarbonate visor with siloxane double coating for scratch resistance
- Directional exhaust valve with 4 positions and a dive / pre-dive switch
- SAV (Surface Air Valve) included
- Extender Kit included: pre-assembled frame, NACS (Neptune Adjustable Communication Support), and earphone supports that rotate 30 degrees
- Lifetime warranty, consistent with Ocean Reef's Professional line coverage
Compatibility and sizing
The Space Extender is offered in Black and Cobalt in S/M (Small/Medium) and ML (Medium/Large) sizing, and in Yellow and Orange in ML. It is compatible with the Vesper underwater dive light and communication accessory, and the Extender Kit frame is retrofittable to GDivers, Neptune Space, and Raptor masks from 2006 to 2015, per Ocean Reef's own FAQ.
What's in the box
- Space Extender full-face mask
- Extender frame (pre-assembled)
- NACS (Neptune Adjustable Communication Support)
- Earphone supports
- SAV (Surface Air Valve)
DiveCatalog.com is an authorized Ocean Reef dealer and a dive shop in Irvine, California since 2003. Call or chat with us at 888-701-4017 if you have questions about sizing, color options, or comms accessory compatibility before you buy.
- Integrated regulator: Cold water certified, balanced, on-demand regulator built into the mask.
- Scratch-resistant visor: Polycarbonate visor with siloxane double coating.
- Directional exhaust valve: 4-position valve for air flow control.
- Dive / pre-dive switch: Lets divers toggle between breathing modes before submerging.
- SAV included: Surface Air Valve included with the mask.
- Extender Kit included: Pre-assembled frame, NACS communication support, and earphone supports come standard.
- Rotating earphone supports: Rotate at a 30 degree angle and can hold GSM G-Power SL earphones or be adapted for side lights or sport cameras.
- Accessory-ready frame: Flat top surface for mounting a sport camera plus a surface for drilling custom accessory mounts.
- Vesper compatible: Works with Ocean Reef's Vesper underwater dive light and communication accessory.
- Lifetime warranty: Covered under Ocean Reef's Professional line lifetime warranty.
- Multiple colors and sizes: Black and Cobalt in S/M and ML; Yellow and Orange in ML.
| Product type | Integrated Diving Mask (IDM) |
| Platform | Ocean Reef SPACE full-face mask |
| Regulator | Cold water certified, balanced, on-demand integrated regulator |
| Visor material | Polycarbonate, siloxane double coated for scratch resistance |
| Exhaust valve | Directional, 4 positions |
| Switch | Dive / pre-dive switch |
| SAV | Surface Air Valve included |
| Extender Kit | Pre-assembled frame, NACS, earphone supports included |
| Warranty | Lifetime (Professional line) |
| Colors/Sizes | Black and Cobalt (S/M, ML); Yellow and Orange (ML) |
| Compatibility | Vesper dive light/communication accessory; retrofittable to GDivers, Neptune Space, and Raptor masks from 2006 to 2015 |
- Space Extender full-face mask
- Extender frame (pre-assembled)
- NACS (Neptune Adjustable Communication Support)
- Earphone supports
- SAV (Surface Air Valve)
⚠️ 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
Is the Ocean Reef Space Extender compatible with the Vesper dive light?
Yes. Ocean Reef lists the Space Extender as compatible with the Vesper underwater dive light and communication accessory, along with its other Neptune and SPACE line full-face masks. This lets divers add underwater lighting and communication capability to the Space Extender without swapping masks.
What sizes does the Space Extender come in and how do I choose?
The Space Extender is offered in two sizes: S/M (Small/Medium) and ML (Medium/Large). Since it is a full-face mask with an integrated regulator, proper fit affects both seal and comfort, so divers between sizes or unsure of fit should contact a dive shop for guidance before purchasing.
What comes included with the Space Extender Mask Kit?
The Space Extender ships with the full-face mask itself plus the Extender Kit, which includes a pre-assembled Extender frame, the NACS (Neptune Adjustable Communication Support), and earphone supports. A Surface Air Valve (SAV) is also included with the mask.
Can the Extender Kit frame be used on other Ocean Reef masks?
According to Ocean Reef's own FAQ, the Extender Kit frame is retrofittable to GDivers, Neptune Space, and Raptor model masks produced from 2006 to 2015, in addition to being included standard on the Space Extender. This makes it possible to add the same camera and comms mounting frame to compatible older masks.



















