Spare Air — Emergency Air When It Matters Most
A dive emergency rarely announces itself in advance. A free-flowing regulator, an out-of-air situation, or a panicked buddy needing to share can happen at any depth, at any point in a dive. Spare Air exists to give you an independent air supply when your primary source fails — not as a substitute for good dive practice or a properly configured primary regulator, but as a genuine backup that may be the difference between surfacing safely and a serious incident.
Spare Air's system is compact enough to clip to your BCD without adding meaningful drag or bulk, and refills directly from any full scuba tank in seconds — you don't need specialized equipment or a separate air station. At DiveCatalog.com, we carry the current Spare Air lineup as an authorized dealer.
The Spare Air Range
300PK-DG — Standard Air with Dial Gauge
The standard Spare Air package: a 3.0 cu ft (85 liters) aluminum, black-anodized cylinder with a balanced single-stage regulator delivering steady air when you need it most, plus a dial gauge for easy pressure monitoring. Includes the Spare Air unit, holster, safety leash, and refill adapter. Refills from any full scuba tank in seconds.
300PK-N and 300PK-NDG — Nitrox Versions
The same 3.0 cu ft platform, cleaned and configured for use with Nitrox breathing gases. The NDG version adds the dial gauge for pressure monitoring; the N version is the base unit (gauge sold separately). Both include the holster, safety leash, and refill adapter.
600PK-NDG — Larger Capacity Nitrox
The 600PK doubles the capacity to 6.0 cu ft (170 liters), providing significantly more air for a longer ascent in an emergency — a meaningful difference in a genuinely deep or extended dive scenario. Weighs under 4 lbs, still light enough to go unnoticed during a normal dive. Includes the Nitrox dial gauge, holster, safety leash, and refill adapter.
Why Buy Spare Air from DiveCatalog.com?
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Authorized Spare Air dealer — genuine products, full manufacturer warranty
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Fast shipping — in-stock items ship within one business day
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Rewards program — earn points on every purchase
Frequently Asked Questions — Spare Air
Is Spare Air a substitute for a properly configured primary regulator and octopus?
No. Spare Air is an emergency backup — not a replacement for a primary octopus or a properly configured dive system. It provides emergency air to support a controlled ascent if your primary supply fails, and works alongside proper dive practice rather than replacing it.
How do I refill Spare Air?
The included refill adapter connects directly to any full scuba tank, transferring air into the Spare Air cylinder in seconds — no specialized equipment or air station required.
What is the difference between the 300PK and 600PK?
The 300PK holds 3.0 cu ft (85 liters); the 600PK holds 6.0 cu ft (170 liters). More capacity provides more air for a longer controlled ascent in an emergency.
Do I need a Nitrox-specific Spare Air?
Yes, if you're filling it with Nitrox. The N and NDG variants are cleaned and configured for Nitrox breathing gases. Use the standard non-Nitrox variants only with air.
Browse the full Spare Air collection above. It's one of those pieces of gear you hope you never need, and deeply glad to have when you do.
