Double Tanks

Hollis DT System

SKU: HLSDS

^$859.95

+ wishlist

In Stock

DESCRIPTION

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

Catalina Pony Bottle Tanks with Pro Valve

70 reviews

SKU: AQUTP19

~~$219.95~~ Save: $41.01 (19%)

^$178.94

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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

XS Scuba Faber High Pressure Steel Tank

50 reviews

SKU: FBRHP120G

^$550

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In Stock

DESCRIPTION

A high-pressure steel tank with great buoyancy characteristics, suitable for nitrox diving.

Pros

High gas capacity
Good value for the price
Excellent tank and valve set up
Improved bottom times and buoyancy characteristics
Fast delivery and great condition

XS Scuba Pony Bag

14 reviews

SKU: XSSPBB13

^$22

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In Stock

DESCRIPTION

A sturdy and secure pony bag that easily connects to your primary diving cylinder.

Blue Steel Tank Boots for Faber Tanks

13 reviews

SKU: FBRTB55

^$14.99

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In Stock

DESCRIPTION

A blue tank boot that protects tanks, allows for easy mounting of dive rig, and has a streamlined design.

Suunto Tank POD Transmitter for EON/D5 Dive Computer

10 reviews

SKU: SQTPOD

^$439

+ wishlist

In Stock

DESCRIPTION

A wireless tank pressure transmitter that provides a quick and easy view of tank pressure for Suunto EON/D5 Dive Computers.

Zeagle Back-Plates

7 reviews

SKU: ZGLSSBP

^$259.95

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In Stock

DESCRIPTION

A versatile back-plate for easy mounting of Zeagle bladders, available in stainless steel or anodized aluminum.

Aqua Foam Tank Holder for 2 to 3 Cylinders

5 reviews

SKU: AQUFTH2

^$42.95

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In Stock

DESCRIPTION

A non-corrosive foam holder for 2-3 scuba tanks, preventing rolling and increasing transport safety.

XS Scuba Tail Weight Pouch

2 reviews

SKU: XSSWB500

^$20

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In Stock

DESCRIPTION

A convenient and secure tail weight pouch with velcro closure for attaching to your scuba gear.

Dive Rite TransPac Stabilizer Plates for Doubles

2 reviews

SKU: DIV2084

^$16.50

+ wishlist

In Stock

DESCRIPTION

A corrosion-resistant stainless steel stabilizer plate for double tanks, compatible with standard twin bands.

Thunderbird 80 cu. ft Aluminum Tank ~ Limited Time FREE with Thermo International Valve, Tank Boot and Valve Cap

2 reviews

SKU: MTLTA80SB

^$344.95

+ wishlist

In Stock

DESCRIPTION

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

Hollis Double Mounting Plates (set of two)

1 reviews

SKU: HLSDMP

~~$41.95~~ Save: $12.00 (29%)

^$29.95

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In Stock

DESCRIPTION

A stainless steel set of two mounting plates for secure dual tank attachment to Hollis backplate.

Dive Rite Doubles Regulator Package

1 reviews

SKU: DIVPK53DB

^$1250

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In Stock

DESCRIPTION

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

Thunderbird 30 cu. ft Aluminum Tank with Pro valve

1 reviews

SKU: MTLTA30YL

^$259.95

+ wishlist

In Stock

DESCRIPTION

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

Faber Low Pressure Steel Tank

1 reviews

SKU: FBRLP108S

^$259.95

+ wishlist

In Stock

Highland 45 lbs Twin Wing

SKU: XSSHL45W

^$439.95

+ wishlist

In Stock

DESCRIPTION

A rugged 1000D Cordura twin wing with 45 lb lift and 360° inflation for technical twin tank diving.

Dive Rite Rec XT Wing Dual Bladder

SKU: DIV5300D

^$670

+ wishlist

In Stock

DESCRIPTION

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

Apeks TEK3 Regulator Set

1 reviews

SKU: APXT3RS

^$1899

+ wishlist

In Stock

DESCRIPTION

A pneumatically-balanced 2nd stage regulator set, embraced by the technical community, suitable for cold water use.

Zeagle Band for Twin Cylinders

SKU: ZGLBTC

^$34.95

+ wishlist

In Stock

DESCRIPTION

A durable and versatile cylinder band that increases bottom time for diving with doubles.

Hollis DT Wings

SKU: HLSDTW45

^$649.95

+ wishlist

In Stock

DESCRIPTION

A durable and versatile Hollis DT Wings with multiple lift capacities and easy-to-reach OPV's.

Mares XR Twin Tank Donut Bladder

SKU: MRS4175125

~~$504.73~~ Save: $239.78 (48%)

^$264.95

+ wishlist

In Stock

DESCRIPTION

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

Catalina 80 Cubic Foot Aluminum Tank with Pro Valve

151 reviews

SKU: AQUTA80NP

~~$369.95~~ Save: $81 (22%)

^$288.95

+ wishlist

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
Good customer service
Variety of color options
Great price and value
Fast delivery time

Blue Reef 'DIN' Tank Pressure Checker

32 reviews

SKU: AQUTPCD

~~$79.95~~ Save: $28.01 (35%)

^$51.94

+ wishlist

In Stock

DESCRIPTION

A Blue Reef pressure checker with impact-resistant rubber boot and plastic protector cap for easy pressure reading.

Pros

Ability to check din cylinder pressures
Convenience
Heavy-duty construction
Decent price
Works as advertised

Roll-Control Adjustable Tank Bracket, Set of 2 (TA-80)

15 reviews

SKU: RCSTA80WT

^$74.95

+ wishlist

In Stock

DESCRIPTION

A durable set of two adjustable tank brackets suitable for all cylinder sizes and track types.

Tank to Tank Equalizer with Pressure Gauge

11 reviews

SKU: AQUTTE

^$169.95

+ wishlist

In Stock

DESCRIPTION

A Tank to Tank Equalizer with Pressure Gauge that maximizes air availability and is a great Save-A-Dive-Kit item.

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Double Tanks

Double tank systems are a cornerstone of advanced scuba diving, offering both extended underwater time and essential redundancy for those who demand more from their gear. Whether you are a technical diver planning a deep wreck exploration or a recreational diver seeking increased safety margins, double scuba tanks provide the capacity and flexibility to support longer, more complex dives. The winter months, with their cooler water temperatures and often clearer visibility in many regions, are a prime season for experienced divers to push their limits and explore sites that are less crowded. Double tank setups, also known as doubles or buceo con doble tanque, are especially valued in these conditions, allowing divers to carry ample breathing gas and manage their gas reserves with greater confidence. The ability to isolate tanks with a manifold or operate them independently can be a lifesaver in the unlikely event of a regulator malfunction or gas leak, making double scuba tanks a preferred choice for those who prioritize safety and self-reliance.

Selecting the right double tank configuration involves careful consideration of several factors, including tank material, size, and buoyancy characteristics. Steel double tanks are popular for their negative buoyancy and compact profile, which can help streamline a diver’s trim and reduce drag underwater. Aluminum doubles are lighter on land but may require additional weight to maintain proper buoyancy at depth. Pairing your double tanks with a double tank BCD (buoyancy control device) is crucial for stability and comfort, as these BCDs are designed to support the extra weight and width of two cylinders. Many divers also invest in a dedicated backplate and wing system or a specialized harness for optimal load distribution and control. If you’re new to doubles, transitioning from a single tank setup can feel like stepping into a new world—one where meticulous gas management, precise buoyancy, and streamlined equipment become second nature. For those seeking the best in comfort and safety, exploring options for Double Tank Harnesses can make a significant difference in your diving experience.

Double scuba tanks are not only a practical choice for demanding dives; they also make a thoughtful gift for the passionate diver in your life. Imagine the excitement of unwrapping a gift that opens up new possibilities for exploration, whether it’s for a milestone birthday, a holiday, or simply as a gesture of encouragement for someone pursuing advanced dive training. The versatility of double tank systems means they are equally suited for cold water dives in January as they are for warm water expeditions later in the year. From cave diving in Florida’s crystal-clear springs to exploring kelp forests along the Pacific Coast, double tank setups empower divers to go further and stay longer, all while maintaining the highest standards of safety. The sense of adventure that comes with donning a double tank BCD, feeling the heft of two cylinders as you step into the water, and knowing you have the resources to handle whatever the dive brings is unmatched. As you plan your next underwater journey or consider upgrading your gear, remember that double tanks represent both a commitment to excellence and a gateway to some of the most rewarding experiences the underwater world has to offer.