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Product Information
The Spare Air Model 170 (1.7 cu. ft. Package), sold here as the 170PK-DG, is a self-contained, user-refillable miniature backup scuba system that pairs a balanced single-stage regulator with a 1.7 cu ft aluminum cylinder. It is built to give a diver enough reserve air to make a controlled ascent to the surface if the primary air supply is interrupted.
Who it is for
Spare Air is used by both professional and sport divers as a personal, independent backup air source. Because it is self-contained, it functions as a total redundant miniature scuba system that stays with the diver whether or not it is ever needed.
Key details
- Max capacity: 1.7 cu ft / 48 liters
- Length: 8.75 in / 22.23 cm, diameter: 2.25 in / 5.71 cm
- Maximum pressure: 3000 psi / 207 bar
- Weight when full: 1.51 lb / 0.687 kg
- Surface breaths: 32
- Cylinder material: aluminum, black anodized
- Regulator type: balanced single stage with pressure relief integrated in the regulator
Compatibility and sizing
The unit refills in seconds from any full standard SCUBA tank using the included 910S refill adapter.
What's in the box
- Spare Air unit (regulator and 1.7 cu ft cylinder, Model 170)
- 910S Refill Adapter
- 971 Covered Holster with two quick-release straps for BC mounting
- 961 Safety Leash
- Dial Gauge
DiveCatalog.com is an authorized Spare Air dealer and has been a dive shop in Irvine, California since 2003. Call or chat with us at 888-701-4017 if you have questions about fit, mounting, or refill compatibility before you order.
- Self-contained backup system. A total redundant miniature scuba system, independent of the primary air supply, for emergency use.
- User-refillable. Refills in seconds from any full SCUBA tank using the included 910S refill adapter.
- 1.7 cu ft capacity. Delivers 32 surface breaths from a 1.7 cu ft / 48 liter aluminum cylinder.
- Balanced single-stage regulator. Regulator design includes integrated pressure relief.
- Compact size. Measures 8.75 in / 22.23 cm long and 2.25 in / 5.71 cm in diameter.
- Lightweight. Weighs 1.51 lb / 0.687 kg when full.
- Black anodized aluminum cylinder. Rated to a maximum pressure of 3000 psi / 207 bar.
- Covered Holster included. PN 971 holster attaches with two quick-release straps for mounting on a BC.
- Safety Leash included. PN 961 leash helps prevent loss or drop of the unit.
- Dial Gauge included. This package comes with a Dial Gauge in place of a standard pin-type pressure indicator.
| Max Capacity | 1.7 cu ft / 48 liters |
| Length | 8.75 in / 22.23 cm |
| Diameter | 2.25 in / 5.71 cm |
| Maximum Pressure | 3000 psi / 207 bar |
| Weight (full) | 1.51 lb / 0.687 kg |
| Surface Breaths | 32 |
| Water Volume | 13.8 cu in / 0.23 liters |
| Cylinder Material | Aluminum, Black Anodized |
| Regulator Type | Balanced Single Stage |
| Pressure Relief | Integrated in Regulator |
- Spare Air unit (regulator and 1.7 cu ft cylinder, Model 170)
- 910S Refill Adapter
- 971 Covered Holster
- 961 Safety Leash
- Dial Gauge
⚠️ 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
How do you refill the Spare Air 170PK-DG?
You refill it in seconds from any full standard SCUBA tank using the included 910S refill adapter, as it is user-refillable and self-contained.
What is included with the Spare Air 170PK-DG package?
The package includes the Spare Air unit with its 1.7 cu ft aluminum cylinder and balanced single-stage regulator, a 971 covered Holster with two quick-release straps for BC mounting, a 961 Safety Leash, the 910S Refill Adapter, and a Dial Gauge.
What is the difference between the standard pin indicator and the Dial Gauge?
The standard configuration uses a pin-type pressure indicator; the Dial Gauge is an accessory offered in place of it. This 170PK-DG package comes with the Dial Gauge already included in place of the standard pin indicator.
How does the Spare Air holster mount to my gear?
The included 971 Covered Holster mounts using two quick-release straps, allowing it to attach to a BC for carrying the Spare Air unit during a dive.
