Ocean Reef Neptune Adjustable Communication Support (NACS)
Ocean Reef Neptune Adjustable Communication Support (NACS) is backordered and will ship as soon as it is back in stock.
Pickup currently unavailable at In Store
Ocean Reef Neptune Adjustable Communication Support (NACS) is backordered and will ship as soon as it is back in stock.
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Product Information
The Ocean Reef NACS (Neptune Adjustable Communication Support) is a patented bracket that mounts an OCEAN REEF communication unit, such as the GSM G.divers, onto the Extender Frame of an Ocean Reef IDM full face mask. It takes the weight of the communication unit off the mask strap, is adjustable for tilt and for horizontal distance from the mask, and is engineered to break away if it becomes entangled. This listing is for the standard, non-foldable NACS (OR025056) sold as a replacement part.
Who it is for
This NACS is for divers running an Ocean Reef IDM mask with the Extender Frame who are adding, repositioning, or replacing the mount that holds a GSM G.divers (or similar OCEAN REEF communication unit) over the ear. It suits anyone whose original NACS bracket has worn out, broken away as designed during an entanglement event, or simply needs to be swapped between masks.
Key details
- Patented Ocean Reef design used to attach a communication unit to the IDM mask
- Relieves the mask strap of the communication unit's weight
- Adjustable on two axes: inclination (tilt) and horizontal distance between the comm unit and the mask
- Engineered to break or detach under load if entangled, as a safety feature
- Mounts to the left side of the Extender Frame
- Sold as an individual replacement part
Compatibility and sizing
The NACS is used with OCEAN REEF IDM communication systems and is specifically needed to install the GSM G.divers unit on the Extender Frame. OCEAN REEF also offers a separate Foldable NACS (OR025072) that folds inside the mask for storage; this listing is the standard, non-folding version, so confirm which bracket your mask and communication unit require before ordering.
DiveCatalog.com is an authorized Ocean Reef dealer and has been a dive shop in Irvine, California since 2003, so call or chat with us at 888-701-4017 if you need help matching this NACS to your IDM mask or GSM communication unit.
- Patented mount: Patented Ocean Reef design used to attach an OCEAN REEF communication unit to an IDM mask.
- Strap relief: Takes the weight of the communication unit off the mask strap.
- Two-axis adjustment: Adjustable for inclination (tilt) and for horizontal distance between the communication unit and the mask.
- Breakaway safety: Engineered to break or detach in the event of entanglement.
- Left-side mounting: Mounts to the left side of the Extender Frame.
- Required for GSM G.divers on Extender Frame: Needed to install the GSM G.divers unit on the Extender Frame.
- Replacement part: Sold individually to replace a worn or detached NACS bracket.
- Durable construction: Described by the manufacturer as light, sturdy, and durable.
| Brand | Ocean Reef |
| Product name | NACS - Neptune Adjustable Communication Support |
| SKU | OR025056 |
| Barcode | 764500011378 |
| MPN | 7.65E+11 |
| Mounting location | Left side of Extender Frame |
| Adjustability | Tilt (inclination) and horizontal distance from mask |
| Safety feature | Breaks/detaches under entanglement load |
| Compatibility | Ocean Reef IDM communication systems; required for GSM G.divers on Extender Frame |
| Part type | Replacement part |
| Related variant | Foldable NACS for Extender (OR025072), sold separately |
⚠️ 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 does the Ocean Reef NACS do?
The NACS (Neptune Adjustable Communication Support) is a patented bracket that mounts an OCEAN REEF communication unit to an IDM mask's Extender Frame. It relieves the mask strap of the unit's weight, lets you adjust tilt and horizontal distance, and is engineered to break away if it gets entangled.
Is the NACS required to use the GSM G.divers on the Extender Frame?
Yes. OCEAN REEF states the NACS is needed to install the GSM G.divers communication unit on the Extender Frame, so this bracket is a required part of that setup rather than an optional accessory.
Is this the foldable NACS or the standard version?
This listing (OR025056) is the standard, non-foldable NACS. OCEAN REEF also sells a separate Foldable NACS (OR025072) for the Extender Frame that folds inside the mask for storage, so check which version your mask and communication unit need.
Which side of the mask does the NACS mount on?
The NACS mounts to the left side of the Extender Frame, positioning the communication unit over the ear on that side.
