Spare Air SCUBA Tank Refill Adapter
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Spare Air SCUBA Tank Refill Adapter is backordered and will ship as soon as it is back in stock.
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Product Information
The Spare Air SCUBA Tank Refill Adapter (model 910S) is a yoke-style connector made by Submersible Systems that lets a diver refill a Spare Air unit directly from a standard SCUBA tank, filling an empty Spare Air or topping off its pressure up to 3000 psi.
Who it is for
This adapter is for divers who already carry a Spare Air emergency air supply, including Spare Air Industrial Safety units, the Xtreme Sport (1.7 cu ft), and the Xtreme 6 (6 cu ft), and who want a way to recharge that unit from any standard SCUBA tank in the field rather than sending it out for a fill.
Key details
- Yoke-style fitting that threads onto the Spare Air check valve refill port
- Connects to a standard SCUBA tank yoke valve
- Fills to 3000 psi, either from empty or as a top off of existing pressure
- The source SCUBA tank must be fully pressurized to 3000 psi to achieve a complete fill
- This 910S version uses a ring pressure release valve to vent pressure once the tanks equalize
- Step by step instructions are provided on page 5 of the Spare Air Owner's Manual
Compatibility and sizing
The 910S is designed to work with Spare Air Industrial Safety units, the Spare Air Xtreme Sport (1.7 cu ft), and the Spare Air Xtreme 6 (6 cu ft), using any standard SCUBA tank fitted with a yoke valve as the fill source.
DiveCatalog.com is an authorized Spare Air dealer and has been a dive shop in Irvine, California since 2003. Call or chat with our team at 888-701-4017 if you need help confirming fit or compatibility with your specific Spare Air model.
- Yoke-style connection: Threads onto the Spare Air check valve refill port and connects to a standard SCUBA tank yoke valve.
- Full fill or top off: Can fill an empty Spare Air or top off existing pressure up to 3000 psi.
- 3000 psi fill pressure: Delivers a complete fill when the source SCUBA tank is fully pressurized to 3000 psi.
- Ring pressure release valve: This 910S version vents pressure through a ring pressure release valve once the tanks equalize.
- Field refill convenience: Lets divers recharge a Spare Air unit directly from any standard SCUBA tank.
- Documented instructions: Use instructions are provided on page 5 of the Spare Air Owner's Manual.
| MPN | 910S |
| Style | Yoke |
| Fill pressure | 3000 psi |
| Pressure release mechanism | Ring pressure release valve |
| Source tank requirement | Standard SCUBA tank with yoke valve, fully pressurized to 3000 psi for a complete fill |
| Compatible Spare Air units | Spare Air Industrial Safety units, Xtreme Sport (1.7 cu ft), Xtreme 6 (6 cu ft) |
| Instructions | Spare Air Owner's Manual, page 5 |
⚠️ 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 is the difference between the Spare Air 910S and 910C refill adapters?
The 910S uses a ring pressure release valve to vent pressure once the connected tanks equalize, while the newer 910C uses a bleed screw for the same purpose. Both are yoke-style adapters that refill a Spare Air from a standard SCUBA tank up to 3000 psi. The manufacturer produced the 910S through July 2025 before introducing the 910C.
Will this adapter work with a DIN tank valve?
No. The 910S is a yoke-style adapter and is built to connect to a standard SCUBA tank that has a yoke valve, not a DIN valve.
How full does my SCUBA tank need to be to refill my Spare Air completely?
The source SCUBA tank needs to be fully pressurized to 3000 psi to achieve a complete fill of your Spare Air unit.
Which Spare Air models can I refill with this adapter?
This adapter is built to refill Spare Air Industrial Safety units, the Spare Air Xtreme Sport (1.7 cu ft), and the Spare Air Xtreme 6 (6 cu ft), connecting each unit's check valve refill port to a standard SCUBA tank yoke valve.
