Diving Backup Regulators

Cressi XS Octopus

87 reviews

SKU: CSBOXS

~~$124.95~~ Save: $15.95 (13%)

^$109

+ 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

^$320

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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: ATMSS1SYL

^$449.95

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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

Aqualung Calypso/Titan Octopus

28 reviews

SKU: UDRCTO

^$219

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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

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In Stock

DESCRIPTION

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

Sherwood Brut Pro Regulator

12 reviews

SKU: SWDBRP

^$364.95

+ wishlist

In Stock

DESCRIPTION

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

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.

Mares Prestige 15X and Prestige Octopus Package

10 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.

Hollis DC7 500SE Regulator with Maxflex Hose

10 reviews

SKU: HLSDC75Y

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

^$399.95

+ wishlist

In Stock

DESCRIPTION

A precision regulator set with environmentally sealed, durable materials and adaptable second stage positioning.

Scubapro MK25 EVO/S620Ti Dive Regulator System

9 reviews

SKU: SCPM25ES620

^$1185

+ wishlist

In Stock

DESCRIPTION

A high-performance regulator set with a balanced piston first stage and adjustable inhalation control.

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.

XS Scuba Alt Air Octopus

8 reviews

SKU: XSSAAOBK

^$97.95

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In Stock

DESCRIPTION

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

Cressi XS Compact Octopus

8 reviews

SKU: CSBOC

^$154.95

+ wishlist

In Stock

DESCRIPTION

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

Atomic Aquatics B2 Sealed Regulator Yoke

7 reviews

SKU: ATMB2SS

^$1019.95

+ wishlist

In Stock

DESCRIPTION

A lightweight, ergonomic regulator with a titanium second stage and patented comfort swivel.

Dive Rite XT2 Second Stage Only (No Hose)

7 reviews

SKU: DIVRG5200R

^$150

+ 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

^$475

+ wishlist

In Stock

DESCRIPTION

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

Atomic Aquatics ST1 Swivel Sealed Regulator

6 reviews

SKU: ATMST1SS

^$1519.95

+ wishlist

In Stock

DESCRIPTION

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

Dive Rite XT Advanced Open Water Regulator

5 reviews

SKU: DIVPK53Y

^$779

+ wishlist

In Stock

DESCRIPTION

A streamlined, environmentally sealed regulator with adjustable 2nd stage and cold-water ready components.

Scubapro S600 Regulator, Second Stage Only

5 reviews

SKU: SCPS600N

^$602

+ 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

Sherwood SR2 Octopus, Yellow Hose

5 reviews

SKU: SWDSR2O

^$274.95

+ wishlist

In Stock

DESCRIPTION

A yellow Sherwood SR2 Octopus with adjustable 2nd stage and ergonomic design for comfort.

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.

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

3 reviews

SKU: PCKXS22G

^$444.95

+ wishlist

In Stock

DESCRIPTION

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

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Diving Backup Regulators

When planning any dive, whether you’re exploring a vibrant reef in the tropics or venturing into the mysterious blue of a local quarry, preparation is key—and few pieces of equipment are as crucial to your safety as a reliable backup regulator. Often called an “octopus” or alternate air source, the backup regulator serves as a lifeline, ready to deliver air in unexpected situations. Experienced divers know that conditions can shift in an instant: a sudden current, a tangled hose, or a buddy signaling they’re low on air. In these moments, having a dependable backup regulator isn’t just a matter of convenience—it’s essential for peace of mind and the safety of everyone in your dive group. As summer brings warmer waters and longer dive days, more divers are venturing out, making it even more important to check and upgrade your gear before heading to your favorite dive spot or planning a new underwater adventure.

Selecting the right backup regulator involves balancing ease of use, durability, and compatibility with your primary setup. Many divers prefer a brightly colored hose or mouthpiece for their backup, making it easy to spot in low visibility or during a quick response. Comfort is also a consideration; after all, in a high-stress situation, you want a mouthpiece that feels natural and a purge button that’s easy to operate with thick gloves or cold fingers. For those who travel, compact and lightweight designs are especially appealing, fitting neatly into a gear bag without adding unnecessary bulk. If you’re shopping for a new diver, a backup regulator makes a thoughtful and practical gift—something that signals you care about their safety and want them to be prepared for any scenario. Seasoned divers, technical enthusiasts, and instructors all appreciate the confidence that comes from knowing their backup is reliable, especially during complex dives or when leading groups. Regular maintenance and proper storage are just as important as the initial purchase, ensuring that your backup regulator is ready to perform whenever it’s needed.

As you browse through the selection of diving backup regulators, consider how each model aligns with your own diving style and environment. Whether you’re planning drift dives off a sunlit coast or exploring cool freshwater lakes closer to home, a backup regulator is a non-negotiable part of your kit. For those focusing on advanced training or rescue skills this season, investing in a high-quality backup can make a significant difference in both comfort and confidence underwater. And for those interested in a broader range of emergency breathing devices, you may want to explore our curated list of Safety Diving Regulators, which covers additional options designed with diver safety in mind. Ultimately, the best backup regulator is the one that fits seamlessly into your setup, ready to support you and your dive buddies when it matters most. As you gear up for your next underwater journey, take a moment to consider the role your backup regulator plays in every safe and memorable dive.

Top Picks For Diving Backup Regulators