Scuba Backup Tanks

XS Scuba Faber High Pressure Steel Tank

50 reviews

SKU: FBRHP80G

^$419.95

+ wishlist

In Stock

DESCRIPTION

A popular high-pressure steel tank with great buoyancy and convertible yoke/DIN design.

Pros

Beautiful design
Fast delivery
High-quality tank and valve
Great gas capacity
Improved bottom times

Catalina 80 Cubic Foot Aluminum Tank with Pro Valve

151 reviews

SKU: AQUTA80YL

~~$369.95~~ Save: $83 (22%)

^$286.95

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In Stock

DESCRIPTION

A 80 cubic foot aluminum tank with a pro valve that won't rust, has great buoyancy, and a high flow capacity valve.

Pros

Well-made and durable
Fast delivery
Good customer service
Good value for the price
Versatile and lightweight

Faber High Pressure Steel Tank

73 reviews

SKU: FBRHP23BK

~~$359.95~~ Save: $44 (12%)

^$315.95

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In Stock

DESCRIPTION

A high-pressure steel tank that is Nitrox ready and easily converts between DIN/K type valves.

Pros

Perfect size
Durability
No leaks
Great diving characteristics
Versatility

Catalina Pony Bottle Tanks with Pro Valve

70 reviews

SKU: AQUTP40BR

~~$299.95~~ Save: $59 (20%)

^$240.95

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In Stock

DESCRIPTION

A reliable and versatile pony bottle tank with a high flow capacity valve and aluminum alloy design.

Pros

Reliable backup air supply
Minimal effect on buoyancy and trim
Good air capacity
Affordable price
Versatile for different diving scenarios

Spare-Air 3000 Kit

10 reviews

SKU: SX27B

^$299.99

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In Stock

DESCRIPTION

A reliable and compact backup air supply kit for emergency out-of-air situations during diving, available in multiple sizes and colors.

Thunderbird 40 cu. Ft Aluminum Tank with Pro valve

2 reviews

SKU: MTLTA40YL

^$264.95

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In Stock

DESCRIPTION

A 40 cu. ft aluminum tank with Pro valve, nitrox ready up to 40%, corrosion-resistant and convertible.

Thunderbird 30 cu. ft Aluminum Tank with Pro valve

1 reviews

SKU: MTLTA30BR

^$259.95

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In Stock

DESCRIPTION

A corrosion-resistant aluminum tank with convertible valve options and Nitrox readiness up to 40%.

Spare-Air Nitrox Kit

SKU: SX27NB

^$319.99

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In Stock

DESCRIPTION

A redundant alternate nitrox gas source that allows for self-rescue in emergency situations.

Thunderbird 13 cu. ft Aluminum Tank with Pro Valve

SKU: MTLTA13BR

~~$194.95~~ Save: $21.95 (11%)

^$173

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In Stock

DESCRIPTION

A 13 cu. ft aluminum tank with Pro Valve, Nitrox ready up to 40%, corrosion-resistant and convertible.

Thunderbird 6 cu. ft Aluminum Tank with Pro Valve

SKU: MTLTA6BR

^$164.95

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In Stock

DESCRIPTION

A corrosion-resistant aluminum tank with a convertible valve and easy-grip rubber hand-wheel.

Quick Draw Easy Mount, Pony Bottle Holders

24 reviews

SKU: AQUTPB49

^$156.95

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In Stock

DESCRIPTION

A corrosion-resistant, easy-to-install mount for pony bottles that requires no tools and attaches to the cylinder cam band.

Pros

Durable and well-made
No need for additional hardware or grease
Quick and easy to use
Easy to install and remove
Reliable and secure attachment

Highland by XS Scuba Stage Bottle Strap Kits

12 reviews

SKU: XSSSBSK7

^$84.95

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In Stock

DESCRIPTION

A durable strap kit for technical diving that secures and supports extended bottom time.

Catalina 53 Cubic Foot Aluminum Tank with Pro Valve

2 reviews

SKU: AQUTA53BR

~~$344.95~~ Save: $70 (20%)

^$274.95

+ wishlist

In Stock

DESCRIPTION

A lightweight and versatile aluminum tank with a convertible valve design, suitable for child divers and instructional use.

Catalina 63 Cubic Foot Aluminum Tank with Pro Valve

2 reviews

SKU: AQUTA63BR

~~$329.95~~ Save: $50 (15%)

^$279.95

+ wishlist

In Stock

DESCRIPTION

A lightweight, rust-resistant aluminum tank with high flow capacity valve and convertible K-valve.

Thunderbird 63 cu. ft Aluminum Tank with Pro Valve

1 reviews

SKU: MTLTA63YL

^$334.95

+ wishlist

In Stock

DESCRIPTION

A corrosion-resistant aluminum tank with a convertible valve, suitable for nitrox diving up to 40%.

Hollis Deluxe Stage Kit for Aluminum Tanks

SKU: HLSDSK80

^$73.95

+ wishlist

In Stock

DESCRIPTION

A convenient and secure stage kit for setting up stage bottles for decompression or safety stops.

Hollis Deco Tank/Rebreather Bail Out Kit

SKU: HLSDC75A

^$764.95

+ wishlist

In Stock

DESCRIPTION

A reliable Hollis Deco Tank/Rebreather Bail Out Kit with an over-balanced diaphragm regulator and compact pressure gauge.

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Scuba Backup Tanks

For divers who value preparedness and peace of mind beneath the surface, scuba backup tanks are an essential piece of kit that can make all the difference during an unexpected situation. These compact, portable tanks—sometimes referred to as a divers bottle, mini scuba tank, or pony bottle—offer a reliable reserve of air for those rare but critical moments when your primary scuba air tank is depleted or your regulator encounters an issue. Whether you’re an experienced technical diver exploring deep wrecks or a recreational enthusiast enjoying a shallow reef, having a backup air source is a smart safety measure. In fact, many dive instructors and rescue divers consider a backup tank as indispensable as a dive computer watch, especially during complex dives with overhead environments or when venturing into areas with strong currents. The versatility of these tanks also makes them a thoughtful gift for avid divers, new open-water graduates, or anyone who’s ready to take their underwater adventures to the next level.

As winter transitions into spring and dive travel season begins to ramp up, more divers are preparing for trips to warmer waters and exotic destinations. This is a perfect time to review your equipment and consider the value of a backup air solution. Scuba backup tanks come in a range of sizes and materials, from lightweight aluminum models to high-pressure steel options, each designed to meet different needs. Aluminum tanks are favored for their corrosion resistance and manageable weight, making them ideal for travel and boat diving, while steel tanks offer greater capacity and durability for those planning deeper or longer dives. Some models are refillable on the go with a hand pump, which is particularly handy for shore divers or photographers who need a quick top-off between dives. When selecting a backup tank, it’s important to consider your typical dive profile, the maximum depth you plan to reach, and how much additional air you might realistically need in an emergency. Many divers prefer a small, streamlined tank that can be easily clipped to their BC or stowed in a pocket, ensuring it’s always within reach but never in the way.

Beyond safety, scuba backup tanks also open up new possibilities for underwater exploration. They provide peace of mind for solo divers, underwater photographers, and those who like to linger a little longer when something fascinating appears on the reef. Some backup tanks are even designed for use in snorkeling or shallow freediving, offering a few extra minutes of air for close-up encounters with marine life or for assisting a buddy in need. The compact size of these tanks makes them easy to transport, and many come with their own carrying cases for added convenience. For anyone assembling a comprehensive dive kit or searching for a practical, meaningful gift, a backup tank is a thoughtful choice that demonstrates care and attention to safety. If you’re interested in learning more about the different types of backup air systems available and how they can fit into your dive routine, be sure to visit our dedicated page on Scuba Diving Backups for expert advice and curated recommendations. With the right backup tank by your side, you can dive with greater confidence, knowing you’re ready for whatever the underwater world may bring.