Tech Diving Redundancy Gear

Catalina Pony Bottle Tanks with Pro Valve

70 reviews

SKU: AQUTP19BR

~~$209.95~~ Save: $20 (10%)

^$189.95

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In Stock

DESCRIPTION

A reliable, nitrox-ready aluminum pony tank with high flow valve, available in five sizes.

Pros

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

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

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.

Dive Rite XT Advanced Open Water Regulator

5 reviews

SKU: DIVPK53D

^$759

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In Stock

DESCRIPTION

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

Scubapro MK19 EVO/G260 Regulator

2 reviews

SKU: SCPM19EG260

^$1049

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In Stock

DESCRIPTION

A high-performance regulator set for deep, cold, and silty diving with adjustable inhalation and VIVA features.

Highland by XS Scuba Mini Tech Pressure Gauge

2 reviews

SKU: XSSMTG

^$69.95

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In Stock

DESCRIPTION

A compact, easy-to-read pressure gauge for technical and deep divers, with a luminiscent white face.

Dive Rite Stage Bottle Rigging

2 reviews

SKU: DIV2053

^$55

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In Stock

DESCRIPTION

A durable and long-lasting stage bottle rigging with easy grip webbing loops and stainless steel bolt snaps.

Scubapro Digital Depth Gauge Wrist Mount, Imperial

1 reviews

SKU: UTCDG

^$189

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In Stock

DESCRIPTION

A wrist-mounted digital depth gauge with wet sensor activation and ascent rate alarms.

Scubapro G2 Tek Wrist Dive Computer, Blue/Black

1 reviews

SKU: SCPG2TWDC

~~$1049~~ Save: $23 (2%)

^$1026

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In Stock

DESCRIPTION

A reliable, intuitive dive computer with color indicators and multiple gas capabilities, suitable for technical diving.

Scubapro MK19 EVO BT/G260 Carbon BT Yoke Dive Regulator System

1 reviews

SKU: SCPMK19

~~$1549~~ Save: $58 (4%)

^$1491

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In Stock

DESCRIPTION

A premium dive regulator system with a carbon cover, freeze-proof technology, and effortless breathing.

Dive Rite Doubles Regulator Package

1 reviews

SKU: DIVPK53DB

^$1050

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In Stock

DESCRIPTION

A flexible and environmentally sealed regulator package with ergonomic second stage and accessories included.

Dive Rite O2 DECO Regulator

1 reviews

SKU: DIVRG5400

^$299

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In Stock

DESCRIPTION

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

Hollis DT System

SKU: HLSDS

^$859.95

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In Stock

DESCRIPTION

A comfortable and durable back inflation BCD system with a high lift capacity of 50 lbs.

XS Scuba MiFlex Low Pressure XT-Tech Hose

SKU: XSSLPXTH84

^$96.95

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In Stock

DESCRIPTION

A low pressure hose with smooth outer surface, negative buoyancy, and Kevlar reinforcement, suitable for scuba diving.

Highland Vortex DIN First Stage Regulator

SKU: XSSRGH610

^$749.95

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In Stock

DESCRIPTION

A rugged, black chrome PVD-finished diaphragm regulator with swivel turret, ideal for cold water and technical diving.

XS Scuba First Stage Quick Disconnect - Male Only

SKU: XSSAC999

^$27

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In Stock

DESCRIPTION

A high-pressure rated male quick disconnect fitting enabling fast, tool-free LP hose swaps for modular setups.

Apeks WTX-D40 + Stainless Steel Backplate

SKU: APX40SP

^$999

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In Stock

DESCRIPTION

A lightweight buoyancy system rig with a 40 lbs lift capacity and stainless steel backplate.

Garmin Descent G2 Dive Computer

SKU: GRMDG2PK

~~$699.99~~ Save: $100 (14%)

^$599.99

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In Stock

DESCRIPTION

A versatile dive computer with AMOLED display, sapphire lens, and eco-friendly recycled ocean plastic design.

Mares XR Twin Tank Donut Bladder

SKU: MRS4175125

~~$504.73~~ Save: $249.78 (49%)

^$254.95

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In Stock

DESCRIPTION

A durable and versatile back inflator twin tank donut bladder for optimum buoyancy and trim.

Dive Rite FT Advanced Open Water Regulator Package

SKU: DIVPK5800D

^$745

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In Stock

DESCRIPTION

A high-performance regulator package with adjustable 2nd stage, corrosion-resistant design, and streamlined hose routing.

Cressi Travelight Men's Package ~ Includes Travelight BCD, XS Compact Regulator, XS Compact Octopus and Leonardo 2 Gauge Console - Moby 5

SKU: CSBTLMPCKSM

^$1304.80

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In Stock

DESCRIPTION

A complete life support system for male divers, including regulator, octopus, computer console, BCD, and wheeled gear bag.

Lifeguard Contingency Strap for Back-Up Diver

SKU: LGSCS

^$39.95

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In Stock

DESCRIPTION

A durable nylon webbing strap with a noncorrosive buckle for secure diver assistance and easy detachment.

Highland Valor Harness

SKU: XSSHL820XL

^$549.95

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In Stock

DESCRIPTION

A modular technical dive harness with reinforced HDPE panels and stainless steel hardware for maximum durability and configurability.

Dive Rite Aircell Artic Wing, Trans-Plate Harness, XT-Lite Back-Plate, Cam and Crotch Strap with Buckle

SKU: DIVAAWK2

^$738.99

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In Stock

DESCRIPTION

An advanced diving system featuring a durable wing, harness, back-plate, cam, and crotch strap.

Scubapro Jet Fin

197 reviews

SKU: SCPJHSFDBXL

^$229

+ wishlist

In Stock

DESCRIPTION

A high-performance diving fin with a durable rubber build, efficient vented framework, and personalized comfort options.

Pros

Classic and timeless style
Comfortable and customizable fit
Durable and long-lasting
Efficient and powerful propulsion
Maneuverable and versatile design

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Tech Diving Redundancy Gear

Technical diving demands a level of preparation and forethought well beyond that of recreational scuba, especially when it comes to redundancy gear. Whether you’re exploring deep wrecks, traversing intricate cave systems, or tackling complex decompression profiles, the stakes are simply higher, and every piece of backup equipment becomes a lifeline. Redundancy in tech diving isn’t just about carrying extra gear—it’s about building a system where every potential point of failure is anticipated and addressed. This means configuring twinset cylinders with independent regulators, so that if a regulator or manifold fails, you can quickly isolate the problem and maintain a continuous gas supply. Many divers recall their first real-world experience with a blown O-ring or a free-flowing second stage at depth; it’s a sobering lesson in the importance of having a complete, well-maintained redundant system. These setups often include a primary regulator on a long hose for gas sharing and a backup regulator on a shorter hose, each attached to a separate first stage, making it possible to handle emergencies without hesitation or confusion. For additional peace of mind, pony bottles and stage cylinders are carried as independent gas sources, especially on dives where direct ascent isn’t possible or where multiple gas mixes are required for decompression. These cylinders, carefully slung and labeled, become second nature to the experienced technical diver, providing not just extra air, but extra confidence.

Redundant buoyancy control is another cornerstone of safe technical diving. Most tech divers opt for a wing system with a redundant bladder, ensuring that a puncture or valve failure in the primary bladder doesn’t leave them struggling to control ascent or maintain neutral buoyancy during a decompression stop. The sensation of a gradual wing leak at 40 meters is one that sticks with you—having a backup bladder to inflate, or a drysuit with an independent inflation system, can make all the difference between a controlled ascent and a dangerous situation. It’s also common practice to pair these systems with a sturdy backplate and harness, which not only supports the extra weight of twinsets and stage bottles but also keeps everything streamlined and in place, even during long penetrations or in strong currents. Redundancy extends to your instruments as well: a backup dive computer, often mounted on the opposite wrist, is considered essential. Dive computers, as reliable as they are, can fail due to battery issues, software glitches, or accidental bumps against the wreck or cave wall. Having a second, independently programmed computer ensures you always have access to your critical depth, time, and decompression information. Analog submersible pressure gauges (SPGs) are another must-have—digital displays can fail, but a simple mechanical gauge provides a trustworthy backup for monitoring your remaining gas.

For those shopping for the technical diver in their life, redundancy gear makes an exceptionally thoughtful and practical gift, especially during the holiday season when many divers are planning winter getaways or gearing up for challenging new expeditions in the new year. These aren’t just gadgets—they’re investments in safety, skill, and peace of mind. Whether you’re assembling your first twinset, upgrading to a dual-bladder wing, or adding a backup computer to your kit, each piece of redundancy gear is chosen with care, often after hours of research, consultation with mentors, and hands-on testing in the water. The right redundancy setup isn’t one-size-fits-all; it’s tailored to the diver’s training, the environment, and the specific demands of each dive. If you’re building or refining your tech diving system, or shopping for someone who is, take the time to consider how every component works together to create a seamless, fail-safe rig. For a deeper dive into how these elements integrate and to explore more comprehensive system configurations, visit our Tech Diving Systems page for additional resources and product recommendations tailored to the technical diving community.