Diving Backup Regulators

Cressi XS Octopus

88 reviews

SKU: CSBOXS

^$124.95

+ wishlist

In Stock

DESCRIPTION

A reliable and high-performance Cressi XS Octopus with a lightweight design and dependable valve.

Pros

Great performance and breathability
Good value for the price
Easy to use and adjust
Budget-friendly
Reliable and durable

Scubapro Air 2, Combination Octopus/Inflator Regulator

49 reviews

SKU: SCPA2GYR

^$329

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In Stock

DESCRIPTION

A durable and versatile combination octopus/inflator regulator with easy-to-use features and a classic design.

Pros

Breathability
Reduces clutter and eliminates hoses
Convenient and practical
Combination of octopus and inflator
Streamlined design

Atomic Aquatics Safe Second Inflator (SS1), Stainless Steel

34 reviews

SKU: ATMSS1SRD

^$449.95

+ wishlist

In Stock

DESCRIPTION

A lightweight, 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

Mares Prestige 15X and Prestige Octopus Package

32 reviews

SKU: MRSPKPRGY

~~$619.90~~ Save: $170.90 (28%)

^$449

+ wishlist

In Stock

DESCRIPTION

A lightweight Mares regulator package with diaphragm first-stage, 4 LP ports, and 2 HP ports.

Mares Prestige Octopus

29 reviews

SKU: MRSPRO

~~$169.95~~ Save: $45.00 (26%)

^$124.95

+ wishlist

In Stock

DESCRIPTION

A compact and reliable octopus with easy breathing and durable housing.

Pros

Good value for the price
Suitable for beginners
Durable and long-lasting
Easy breathing
Reliable performance

Aqualung Calypso/Titan Octopus

28 reviews

SKU: UDRCTO

^$219

+ wishlist

In Stock

DESCRIPTION

A reliable and easy-to-use octopus with a silicone mouthpiece and polycarbonate housing.

Pros

Great breathability
Reliable and easy to use
Prompt delivery and well-packed
Inexpensive and good value
Works well in cold water

Atomic Aquatics T3 Titanium Swivel Sealed Regulator

15 reviews

SKU: ATMT3RY

^$2369.95

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In Stock

DESCRIPTION

A lightweight, titanium regulator with a swivel feature for easy breathing and unparalleled reliability.

Oceanic Alpha 8 SP5 Piston Regulator, Black

13 reviews

SKU: OCNA8SP5BK

^$334.95

+ wishlist

In Stock

DESCRIPTION

A durable black piston regulator with easy breathing, Nitrox compatibility, and exceeding safety standards.

Sherwood Brut Pro Regulator

13 reviews

SKU: SWDBRP

^$374.95

+ wishlist

In Stock

DESCRIPTION

A reliable Sherwood Brut Pro regulator with optimal inhalation and exhalation, nitrox compatible up to 40%.

Hollis DC7 500SE Regulator with Maxflex Hose

10 reviews

SKU: HLSDC75D

~~$749.95~~ Save: $350.00 (47%)

^$399.95

+ wishlist

In Stock

DESCRIPTION

A high-performance regulator with over-balanced diaphragm, servo-controlled 2nd stage, and environmentally sealed first stage.

Spare-Air 3000 Kit

10 reviews

SKU: SX27B

^$299.99

+ wishlist

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.

Cressi XS2/AC2 Regulator and XS Octopus Package

9 reviews

SKU: PCKXS2

~~$344.90~~ Save: $45.90 (13%)

^$299

+ wishlist

In Stock

DESCRIPTION

A lightweight, high-performance regulator and octopus package with a non-balanced flow-by piston design.

Cressi XS Compact Octopus

9 reviews

SKU: CSBOC

^$159.95

+ wishlist

In Stock

DESCRIPTION

A reliable and comfortable Cressi octopus with a low profile design and non-corrosive materials.

XS Scuba Alt Air Octopus

8 reviews

SKU: XSSAAOBK

^$97.95

+ wishlist

In Stock

DESCRIPTION

A classic downstream demand valve octopus with an intelligent in-line mouthpiece and Miflex hose.

Atomic Aquatics ST1 Swivel Sealed Regulator

7 reviews

SKU: ATMST1SS

^$1649.95

+ wishlist

In Stock

DESCRIPTION

A corrosion-resistant stainless steel regulator with smooth breathing and tangle-free movement.

Dive Rite XT2 Second Stage Only (No Hose)

7 reviews

SKU: DIVRG5200R

^$199

+ wishlist

In Stock

DESCRIPTION

A pneumatically balanced second stage with a carbon fiber cover and ABS plastic case.

Dive Rite XT Regulator

6 reviews

SKU: DIVRG5300Y

^$575

+ wishlist

In Stock

DESCRIPTION

A patented, environmentally sealed regulator with optimal hose routing and Teflon-coated parts.

Scubapro S600 Regulator, Second Stage Only

5 reviews

SKU: SCPS600N

^$620

+ wishlist

In Stock

DESCRIPTION

A durable Scubapro S600 second stage regulator with adjustable inhalation effort and comfortable mouthpiece.

Atomic Aquatics Z2 Octopus, Yellow

5 reviews

SKU: ATMZ2OYL

^$339.95

+ wishlist

In Stock

DESCRIPTION

A compact and economical yellow octopus with adjustable 2nd stage, perfect for oxygen enriched mixtures.

Cressi Octopus Compact Pro

4 reviews

SKU: CSBOCPN

^$179.95

+ wishlist

In Stock

DESCRIPTION

A low profile octopus with a comfortable silicone mouthpiece and smooth operation.

OMS Evoque 2nd Stage Only (No Hose)

4 reviews

SKU: OMSRESS

^$250

+ wishlist

In Stock

DESCRIPTION

A lightweight, adjustable 2nd stage regulator with a pneumatically balanced valve and ergonomic venturi lever.

Atomic Aquatics Titanium Ti2 Octopus, Yellow

4 reviews

SKU: ATMTI2

^$449.95

+ wishlist

In Stock

DESCRIPTION

A lightweight and corrosion-resistant yellow octopus with adjustable 2nd stage and high visibility cover.

Cressi XS2/AC2 Regulator, XS Octopus and Mini 2 Gauge

3 reviews

SKU: PCKXS22G

~~$544.85~~ Save: $99.90 (18%)

^$444.95

+ wishlist

In Stock

DESCRIPTION

A reliable and comfortable regulator system with primary, octopus, and analog pressure/depth gauge console.

Scubapro MK25 EVO/A700 Carbon BT Yoke Dive Regulator System

3 reviews

SKU: SCPM25EA7CB

^$1799

+ wishlist

In Stock

DESCRIPTION

A durable and sleek black regulator with adjustable 2nd stage and enhanced cold-water diving capabilities.

Zeagle F8 Octopus with Yellow Hose

3 reviews

SKU: ZGLOF8YL

^$349.95

+ wishlist

In Stock

DESCRIPTION

A lightweight yellow octopus with adjustable inhalation resistance and venturi free flow control.

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Diving Backup Regulators

When assembling your scuba diving setup, the backup regulator—often called an octopus or safe second—plays a pivotal role in ensuring every dive is as safe as it is enjoyable. This secondary air source isn’t just a technical requirement; it’s a lifeline designed with both you and your dive buddy in mind. Most divers can recall that first open water course, the instructor demonstrating how to share air in an emergency, the vivid yellow of the backup regulator unmistakable against the blue. That color isn’t just for show; it’s a deliberate choice to make the backup instantly recognizable and accessible, even in low-visibility conditions or when adrenaline is running high. Typically, these regulators are clipped to your BC or secured with a bungee necklace, always within easy reach. Whether you’re exploring a Caribbean reef in the warmth of January’s winter sun or navigating the chilly depths of a mountain lake, the backup regulator is your silent partner—ready to be donated to a buddy in distress or to serve you if your primary system ever malfunctions.

Choosing a backup regulator is a personal decision, influenced by your diving environment, experience level, and the type of diving you plan to do. For those who frequent colder waters, performance in low temperatures becomes essential, as does resistance to free-flow and freezing. Recreational divers might opt for a straightforward, reliable octopus, while technical or deep divers often seek higher-performance models that can deliver air smoothly even at depth or under stress. The backup regulator is also a thoughtful gift for a diver who’s starting to build their own gear kit, or for a seasoned diver looking to upgrade their safety equipment. Giving a backup regulator is more than just gifting a piece of gear—it’s offering peace of mind and an extra measure of security beneath the waves. Regular servicing is crucial, just like with your primary regulator, to ensure that your backup is always ready when needed. Many divers make it a habit to check their backup’s function before every dive, remembering stories from their own experience or from dive buddies about times when having a reliable octopus made all the difference during a surprise out-of-air situation.

No matter the season or destination, the backup regulator remains a non-negotiable component of any safe dive kit. Its presence prevents panic and confusion by allowing you to provide air to a buddy without compromising your own supply, supporting a calm and controlled ascent for both divers. The peace of mind it brings is invaluable, whether you’re guiding a group through a kelp forest or exploring a wreck with a close friend. If you’re considering your options or want to learn more about the range of safety regulators available, take a look at our curated selection of Safety Diving Regulators to find the right fit for your unique needs. Investing in a quality backup regulator is a practical step toward safer, more confident diving—ensuring that you’re prepared for the unexpected, and free to focus on the adventure that awaits beneath the surface.