Spare Air Model 300 Package


Because out-of-air emergencies can happen. It is NOT an octopus. It is NOT buddy breathing. It is NOT Sharing Air. It is NOT a Pony Bottle.

In stock


Spare Air 300 Package


The preferred choice of Recreational Divers


SPARE AIR is the smallest redundant SCUBA system available, packed with 3000 psi to provide you with enough air to get you to the surface in an emergency from recreational depths. It is so small and compact anybody can carry one diving.

  3.0 cubic feet of air
  Tank finish in durable Anodized Black
  Easily refills from your own SCUBA tank with included refill adapter (patented)
  Easily attaches to your BC with included holster and safety leash
  Small, hands-free, nearly neutrally buoyant
  Breathe on demand regulator – No complicated instructions
  Completely redundant back-up miniature SCUBA system
  Cylinder Dimensions: (L x Dia.) 13.4″ x 2.25″ (34cm x 5.71cm)
  Weight: 2.17 lbs. (985 g)
  Cylinders Meet Certificated Specifications of the US Department of Transportation (DOT) with DOT-3AA and Transport Canada Safety and Security (TC) with TC-3AAM specifications

Additional information

Weight 3 kg
Dimensions 37 × 13 × 8 cm




Maximum Capacity

3.0 cu ft / 85 liters


13.4" / 34 cm


2.25" / 5.71 cm

Maximum Pressure

3000 psi / 200 bar

Weight (Full)

2.17 lb. / .985 kg

Surface Breaths*


Water Volume

26.62 cu in / .44 liters

*Based on 1.6 liters per breath


What do I need to do to take Spare Air on commercial aircraft?

When carrying SPARE AIR on a commercial aircraft, the system must be empty and TSA prefers that the regulator be unscrewed from the cylinder so they can be sure that it is empty.

How much air does a Spare Air hold and at what pressure?

SPARE AIR is designed to get someone to the surface in the event of an emergency. The SPARE AIR family consists of three models all at a pressure of 3000 psi. The 170 model holds 1.7 cubic feet of air or approximately 30 breaths at the surface, the 300 model and the 300-N Nitrox model hold 3.0 cubic feet of air or approximately 57 breaths at the surface.

Where can I mount it?

SPARE AIR units come with a Holster that allows you to mount the SPARE AIR virtually anywhere! Two quick disconnect straps connect the Holster on the front of the BC cummerbund, on your tank strap or anywhere on your BC that you choose. Consult the Owner's Manual for more information.

What is the recommended depth?

The SPARE AIR model 300 is designed for recreational diving limits of less than 130 feet, and the 170 model is designed for recreational diving limits of less than 100 feet.

Does the Spare Air affect buoyancy?

The SPARE AIR is light weighing only 2.17 lbs. (Model 300). When filled with 3 cu. ft. of air, the unit is about neutrally buoyant. It should not affect overall buoyancy when mounted on a SCUBA Diver.

Is Spare Air refillable?

Yes, SPARE AIR can be refilled easily either off your own SCUBA tank or off a store or boat air compressor.

How long should it take to fill a SPARE AIR / what is the average safe filling time?

Under normal conditions, it takes approximately 1 minute to fill a 3.0 cu ft SPARE AIR and approximately 45 seconds to fill a 1.7 cu ft SPARE AIR to 3000 psi. Open your SCUBA tanks valve slowly to control the air flow. Rapidly opening the valve can damage your Spare Air.

How long is the warranty period?

SPARE AIR units have a one-year warranty from the date of purchase.

What maintenance does SPARE AIR require?

The unit should be removed from its holster, rinsed off in fresh water after every dive, dried, stored full of air, and taken to an authorized repair facility for an overhaul once a year.

Do the 3000 psi cylinders have to be hydro tested?

Yes, all SPARE AIR 3000 psi cylinders need to be VIP tested once every year and hydro tested once every 5 years.



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