Spare Air Air Compressor Refill Adapter
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Product Information
The Spare Air 920C Air Compressor Refill Adapter is a refill fitting that lets Spare Air and HEED 3 emergency breathing units be filled directly from a full-size high-pressure breathing air compressor instead of a SCUBA tank. It threads onto the check-valve refill port of the Spare Air unit and accepts a yoke-fitting compressor whip, allowing air to be released into the unit up to 3000 psi.
Who it is for
This adapter is built for dive boats, dive stores and travel destinations where a full-size SCUBA compressor is on hand but a tank-to-tank fill is not practical. The manufacturer calls it "a must for dive boats, dive stores or travel destinations," since it lets operators refill Spare Air and HEED 3 units using the same compressor already used to fill SCUBA tanks.
Key details
- Fill pressure: up to 3000 psi
- Part Number: 920C
- Connects to any dive boat or dive store full-size compressor equipped with a yoke-fitting whip rated to fill SCUBA tanks to at least 3000 psi
- Threads onto the check-valve refill port of the Spare Air unit; the compressor whip then attaches to the adapter to release air into the unit
Compatibility and sizing
The 920C is compatible with Spare Air mini SCUBA breathing devices, Spare Air Industrial Safety units, HEED 3, and the Spare Air Xtreme Sport and Xtreme 6, since the Xtreme models thread onto the same refill port as the 910S adapter. It is intended for use with standard dive shop or dive boat full-size SCUBA compressor systems that have a yoke-fitting whip rated to at least 3000 psi.
DiveCatalog.com is an authorized Spare Air dealer and a dive shop in Irvine, California, serving divers since 2003. Call or chat with us at 888-701-4017 if you have questions about which Spare Air model this adapter fits or whether your compressor setup is compatible.
- Compressor refill capability: Spare Air and HEED 3 units are refillable from any high-pressure breathing air compressor using this adapter instead of a SCUBA tank.
- Full-size compressor compatible: Designed for use on any dive boat or dive store full-size compressor that has a yoke-fitting whip built to fill SCUBA tanks to at least 3000 psi.
- Check-valve port connection: Threads directly onto the check-valve refill port of the Spare Air unit.
- 3000 psi fill pressure: The compressor whip attaches to the adapter to release air into the Spare Air up to 3000 psi.
- Manufacturer-recommended for operators: Described by the manufacturer as "a must for dive boats, dive stores or travel destinations."
- Compatible with Spare Air mini SCUBA devices: Works with the standard Spare Air mini breathing units.
- Compatible with Spare Air Industrial Safety: Fits the Spare Air Industrial Safety unit's refill port.
- Compatible with HEED 3: Works with HEED 3 emergency breathing devices.
- Compatible with Spare Air Xtreme Sport and Xtreme 6: These models thread onto the same refill port as the 910S adapter, matching the 920C's connection.
| Brand | Spare Air |
| Part Number | 920C |
| Product Type | Air Compressor Refill Adapter |
| Fill Pressure | Up to 3000 psi |
| Connection | Threads onto check-valve refill port of Spare Air unit |
| Compressor Requirement | Full-size dive boat or dive store compressor with yoke-fitting whip rated to at least 3000 psi |
| Compatible Devices | Spare Air mini SCUBA devices, Spare Air Industrial Safety, HEED 3, Spare Air Xtreme Sport, Spare Air Xtreme 6 |
⚠️ 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 maximum fill pressure for the Spare Air 920C adapter?
The 920C allows a Spare Air or HEED 3 unit to be filled up to 3000 psi. The compressor whip attaches to the adapter, which threads onto the unit's check-valve refill port, and releases air into the unit up to that pressure.
Which Spare Air models work with the 920C refill adapter?
The 920C is compatible with Spare Air mini SCUBA breathing devices, Spare Air Industrial Safety units, HEED 3, and the Spare Air Xtreme Sport and Xtreme 6. The Xtreme models use the same refill port as the 910S adapter, matching the 920C's connection.
What kind of compressor do I need to use the 920C?
You need a full-size dive boat or dive store compressor equipped with a yoke-fitting whip built to fill SCUBA tanks to at least 3000 psi.
How does the 920C adapter attach to a Spare Air unit?
The 920C threads onto the check-valve refill port on the Spare Air or HEED 3 unit. Once threaded on, the compressor's yoke-fitting whip attaches to the adapter so air can be released into the unit.












