Redundant Breathing Systems For Scuba

Catalina Pony Bottle Tanks with Pro Valve

70 reviews

SKU: AQUTP40

~~$299.95~~ Save: $49 (16%)

^$250.95

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In Stock

DESCRIPTION

A reliable, nitrox-ready aluminum pony tank with high flow capacity valve and convertible K-valve.

Pros

Perfect size for various needs
Sufficient air capacity
Economical price
Reliable backup option
Versatile for different diving scenarios

Atomic Aquatics Safe Second Inflator (SS1), Stainless Steel

34 reviews

SKU: ATMSS1SBL

^$449.95

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In Stock

DESCRIPTION

A streamlined stainless steel inflator with high flow 2nd stage and easy single hand operation.

Pros

Convenient
No leaks
Streamlined setup
Easy breathing at depth
Versatility

XS Scuba Pony Bag

14 reviews

SKU: XSSPBB19

^$27

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In Stock

DESCRIPTION

A sturdy and secure pony bag with self-draining mesh bottom, ideal for connecting to primary diving cylinder.

Tusa SS-0002 Duo Air II Alternate Combo Inflator

10 reviews

SKU: TBTSS02

^$299

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In Stock

DESCRIPTION

A combination octopus regulator/power inflator with an air balanced power inflator valve and classic downstream regulator valve.

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.

H2Odyssey Quick Release EAS Bag for 6-cu. ft. Tank

6 reviews

SKU: H2EASB6

~~$11.95~~ Save: $4.00 (33%)

^$7.95

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In Stock

DESCRIPTION

A durable nylon bag that securely holds a 6 cu ft cylinder for easy accessibility.

Aqualung Airsource Complete

6 reviews

SKU: UDRAS3QD

^$279

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In Stock

DESCRIPTION

A pneumatically balanced octopus and BCD inflator combo with soft-touch purge cover and rapid-exhaust valve.

Atomic Aquatics Safe Second Inflator (SS1), Titanium

4 reviews

SKU: ATMSS1T

^$519.95

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In Stock

DESCRIPTION

A streamlined titanium inflator with high flow 2nd stage and oversized buttons for easy single hand operation.

H2Odyssey Extra Air Source Yoke Filler Adapter

2 reviews

SKU: H2EASYFA

^$54.95

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In Stock

DESCRIPTION

A durable chrome plated adapter that allows for easy filling off of a standard yoke valve.

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.

Dive Rite O2 DECO Regulator

1 reviews

SKU: DIVRG5400

^$349

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In Stock

DESCRIPTION

A compact and lightweight DECO regulator with oxygen-compatible materials and advanced performance.

Thunderbird 30 cu. ft Aluminum Tank with Pro valve

1 reviews

SKU: MTLTA30YL

^$259.95

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In Stock

DESCRIPTION

A corrosion-resistant aluminum tank with Pro valve, convertible to K valve, Yoke or DIN.

Dive Rite Rec XT Wing Dual Bladder

SKU: DIV5300D

^$670

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In Stock

DESCRIPTION

A Dive Rite Rec XT Wing with dual bladder for two 85 cubic feet tanks, made of durable technical fabric.

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 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.

XS Scuba MultiMax Breathable Inflator

SKU: XSSRG370

^$263.95

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In Stock

DESCRIPTION

A lightweight, streamlined breathable inflator that increases safety in out-of-air emergencies and eliminates the need for a backup-regulator.

Aqualung Leg3nd MBS Regulator

2 reviews

SKU: UDRLMY

^$1099

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In Stock

DESCRIPTION

A high-performing and easy-to-use regulator with adjustable 2nd stage and exceptional cold-water performance.

Highland Vortex Octopus

SKU: XSSRGH650

^$247.95

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In Stock

DESCRIPTION

A pneumatically balanced, freeze-resistant backup regulator with a yellow Miflex hose for high-visibility and smooth airflow.

Thunderbird 13 cu. ft Aluminum Tank with Pro Valve

SKU: MTLTA13BR

^$194.95

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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.

Aqualung Leg3nd MBS Regulator with Legend Octopus

SKU: UDRLMYOP

~~$1259~~ Save: $188.01 (15%)

^$1070.99

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In Stock

DESCRIPTION

A revolutionary Aqualung regulator with MBS and superior cold-water functionality, paired with a balanced octopus.

Omni Swivel MB-X2 1 to 2 High Pressure Port Y Block Adapter

SKU: OSMBX2

~~$99.95~~ Save: $19.96 (20%)

^$79.99

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In Stock

DESCRIPTION

A durable, compact Y block adapter that splits one high-pressure port into two for gauges or transmitters.

Sherwood SR3 Octopus

SKU: SWDSOR

^$274.95

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In Stock

DESCRIPTION

A high-visibility yellow octopus regulator with advanced technology and SSFC for reliable, effortless emergency breathing.

Interspiro Divator RS4 4-Port Regulator, No Gauge

SKU: INSDR4PGD

~~$1310~~ Save: $401 (31%)

^$909

+ wishlist

In Stock

DESCRIPTION

A high-performance regulator with four low-pressure ports, shockproof rubber cover, and stable intermediate pressure.

TUSA SS0007 Octo/Safe Second Stage Regulator

SKU: TBTSS0007YW

^$180

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In Stock

DESCRIPTION

A reliable and durable TUSA SS0007 Octo/Safe Second Stage Regulator with a large diaphragm and purge.

Mares Dual ADJ Octopus

SKU: MRSOCTDA

^$295.95

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In Stock

DESCRIPTION

A lightweight technopolymer octopus with adjustable breathing control, VAD system, and a flexible Superflex hose.

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Redundant Breathing Systems For Scuba

Redundant breathing systems are a cornerstone of advanced scuba diving safety, offering a dedicated, independent air source that can make all the difference in an unexpected situation. Unlike a standard octopus or alternate air source—which relies on the diver’s primary tank—redundant systems feature a completely separate cylinder, typically a compact pony bottle or ultra-portable handheld unit with its own regulator and pressure gauge. This setup is especially valued by solo divers, underwater photographers, technical enthusiasts, and anyone venturing into environments where a direct buddy assist may not be immediately available. Whether you’re exploring a deep wreck, drifting through kelp forests, or navigating the intricate passages of a cavern, the peace of mind that comes from carrying your own backup air supply is hard to overstate. Winter months, with their colder waters and lower visibility, can amplify the need for self-reliance, making redundant breathing systems a thoughtful upgrade for divers who want to extend their season safely or as a meaningful gift for a loved one who’s passionate about underwater adventure.

When selecting a redundant breathing system, several factors come into play. The size and capacity of the backup cylinder should match the type of diving you plan to do—smaller, handheld units are ideal for recreational divers seeking a lightweight solution for emergencies, while larger pony bottles provide more reserve air for technical dives or deeper excursions. Mounting options are also important; some divers prefer bottles that attach securely to their BCD, while others opt for neck-mounted or side-slung configurations for quick access. The regulator and gauge setup should be intuitive and reliable, allowing for seamless switching in a high-stress scenario. Maintenance and familiarity with the system are crucial; regular practice deploying and breathing from your redundant source will ensure you’re ready if the need arises. These systems are not just for soloists or experts—any diver who values an extra layer of safety, or who dives in conditions where surfacing could be delayed, will appreciate the confidence a redundant air supply brings. For holiday shoppers, a redundant breathing system is a unique and practical gift, signaling care for a diver’s safety and supporting their passion for exploration in every season.

As you browse our curated selection of redundant breathing systems, consider how each option fits your diving style, training, and typical dive environments. Investing in a reliable backup air source is an investment in your own safety and peace of mind, whether you’re gearing up for a solo winter dive or simply want extra assurance on every underwater journey. For more in-depth information about the types of redundant systems available and how to integrate them into your dive kit, visit our comprehensive guide at Diving Redundant Systems. Equipping yourself with the right redundant breathing system ensures you’re prepared for the unexpected, allowing you to focus on the thrill and beauty of the underwater world.