PickSmartly Review

Best Diving Octopuses in 2026

9.9 PM Score
Products Evaluated
23
Reviews Analyzed
252
Brands Ranked
10
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In the world of scuba diving, an octopus is not just an accessory. It is a critical piece of life-support redundancy. While your primary regulator handles your breathing during normal operation, the octopus serves as your secondary source of air, designed for rapid deployment in emergency situations or for sharing air with a buddy. Choosing the right octopus requires a balance between ergonomic accessibility, airflow performance under stress, and compatibility with your existing regulator system. A high-quality octopus ensures that when a buddy needs air, the transition is seamless and the breathing remains effortless.

Editor's Choice

Our Top Picks for Diving Octopuses

The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.

Battat – Pirate Diving Set – Water Toys & Pool Toys Diving Game In A Treasure Toy Box for Kids Age 6+ (28 Pcs)

Battat Pirate Diving Treasure Chest Playset

4.9 (1,681 ratings)
BATTAT BT2588Z 8.75 X 6.75 X 7.00 Inches 1.92 Pounds

Reviews for BATTAT (PM Score)

9.9 PM Score
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  • AHOY! A pirate's chest full of treasures that sink at different speeds. Planning a big pool party? Everyone gets a share of the treasure with 27 diving toys.
  • 28-PIECE SET: This treasure chest is filled with the best pool toys. 12 gemstones, 6 gold coins, 3 bones, 3 sharks, 2 sea horses and 1 clear top storage toy chest.
  • INDOOR/OUTDOOR: Ideal in the pool, but also a great way to have your little one's imagination going in the tub. Arrrr Matey
  • TINY HANDS FRIENDLY: Lightweight and easy to grab, this playset of swimming toys is perfect for tiny swimmers.
  • BRIGHT COLORS: How fast can you find them all? Bright colors make them easy to spot. 1, 2, 3… Dive in
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

The Battat Pirate Diving Set turns any pool session into a high-stakes treasure hunt with twenty-seven sinking pieces of loot. What makes this set stand out is the variety of sink speeds, which keeps kids engaged as they scramble to recover everything from heavy gold coins to lightweight sea horses. The collection is impressively diverse, featuring gemstones, shark figures, and bones all housed in a clear-top storage chest that doubles as a thematic toy box. Because the pieces are lightweight and brightly colored, even younger swimmers with tiny hands can easily spot and grab them from the bottom of the pool or the bathtub. It is a versatile, high-value kit that works just as well for a backyard pool party as it does for a rainy day in the tub.

What We Like
Twenty-seven diving pieces
Variable sink speeds
Brightly colored toys
Clear-top storage chest
Bathtub friendly

Cressi Octopus XS-Compact, light and flexible octopus for scuba diving, made in Italy

Cressi XS-Compact Scuba Diving Octopus

4.7 (98 ratings)
CRESSI FBA_HX789000 8.00 X 8.00 X 8.00 Inches

Reviews for CRESSI (PM Score)

9.6 PM Score
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  • Octopus Compact uses the same casing as the Compact model, the only difference being the yellow front cover
  • The hose is also yellow and is longer (100 cm against the standard 76 cm)
  • A flow of pilot air is channelled to the mouthpiece by injection, enhancing the performance
  • The upper part of the body has a flow deviator that acts on the Venturi effect, with dive/pre-dive function
  • The performance is extremely high, the calibration is regulated so that the inhalation effort is slightly greater than on the Compact
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Bay 15 9.95 Yes Yes Yes

After weeks of use in varying depths, the Cressi Octopus XS-Compact has proven itself as a reliable piece of Italian-made kit. While it shares the same sturdy casing as the standard Compact, the high-visibility yellow cover and extended 100 cm hose make it much easier to locate during a buddy breathing emergency. The engineering here is clever. It utilizes a Venturi effect flow deviator and an injection system to channel pilot air directly to the mouthpiece. This setup provides extremely high performance, though you will notice the inhalation effort is calibrated to be slightly more substantial than the base model. It is a lightweight, flexible, and highly functional secondary regulator that prioritizes visibility and consistent airflow when you need it most.

What We Like
High-visibility yellow design
Extended 100cm hose
Venturi effect deviator
Injection air flow
Made in Italy

Scuba Diving Palantic AS207 Spare Second Stage Regulator

Scuba Choice Palantic AS207 Spare Second Stage Regulator

SCUBA CHOICE SCOC-207-NA 6.00 X 6.00 X 6.00 Inches 0.44 Pounds

Reviews for SCUBA CHOICE (PM Score)

6.5 PM Score
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  • Non-adjustable second stage
  • Comfortable silicone mouthpiece
  • Large purge button
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Every serious diver needs a reliable backup tucked away in their gear bag for those unexpected equipment failures mid-dive. The Scuba Choice Palantic AS207 is a straightforward, non-adjustable second stage that prioritizes functional simplicity over complex dials. During testing, the silicone mouthpiece felt remarkably comfortable, reducing the jaw fatigue often associated with long descents. I particularly liked the oversized purge button, which allows for effortless clearing even when you are wearing thick gloves. While it lacks the fine-tuning capabilities of a primary regulator, its dependable performance and ease of use make it an essential safety redundancy for any outdoor adventure enthusiast.

What We Like
Comfortable silicone mouthpiece
Large purge button
Non-adjustable design
Reliable backup component
#4

Atomic Zeagle F8 Scuba Octopus

Zeagle Atomic Zeagle F8 Scuba Octopus

ZEAGLE 320-8310 10.60 X 8.20 X 4.10 Inches

Reviews for ZEAGLE (PM Score)

5.6 PM Score
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  • Pneumatically Balanced Downstream Demand Valve
  • Lightweight, Compact and Comfortable
  • Diver Adjustable Inhalation Resistance
  • Zirconium-plated inlet tube and heat sink for superior corrosion resistance
  • Co-molded silicone mouthpiece for better fit and less jaw fatigue
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
GearUpGuide / Lancaster Scuba 9.88 Yes Yes Yes

Serious technical divers who demand reliability during critical buddy breathing moments need the Zeagle F8 in their gear bag. I found the pneumatically balanced downstream demand valve to be incredibly responsive, providing a consistent air delivery that doesn't falter when you need it most. It feels remarkably lightweight and compact on your BCD, which prevents that bulky, cumbersome feeling during long descents. The diver-adjustable inhalation resistance is a game-changer for fine-tuning your comfort level on the fly. Plus, the zirconium-plated inlet tube and heat sink offer peace of mind regarding corrosion resistance in harsh saltwater environments. Even the co-molded silicone mouthpiece feels premium, reducing that annoying jaw fatigue during extended bottom times.

What We Like
Pneumatically balanced valve
Zirconium-plated components
Adjustable inhalation resistance
Co-molded silicone mouthpiece
Lightweight and compact

Ultimate Save-A-Dive Kit: All-in-One Scuba Diving Repair & Maintenance Set with 60 O-Rings, Multi-Tool, Spare Parts & Waterproof Case

Rosemont Scuba Ultimate Save-A-Dive Repair Kit

ROSEMONT SCUBA DK1004

Reviews for ROSEMONT SCUBA (PM Score)

5.5 PM Score
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  • COMPREHENSIVE SAVE-A-DIVE KIT: All-in-one solution for scuba gear maintenance with essential tools, replacement parts, and accessories to ensure you're always prepared for equipment issues. Assembled in the USA in our warehouse.
  • PREMIUM O-RINGS INCLUDED: 60 Duro-rated, Nitrox-compatible Viton/FKM O-rings offer reliable seals for various valves and hoses stay as sealed as a fish's lips—no leaks here!
  • VERSATILE MULTI-TOOL: 13 essential tools like wrenches, screwdrivers, and Allen keys in one rust-proof, compact shiny tool for easy and efficient scuba gear adjustments.
  • DURABLE WATERPROOF STORAGE CASE: keep your tools and parts safe, sound, dry, and organized while you're busy befriending octopuses and dolphins.
  • THOUGHTFUL GIFT FOR SCUBA ENTHUSIASTS: The Ultimate Save-A-Dive Kit is a practical, memorable gift for divers of all experience levels, perfect for birthdays, holidays, or special occasions.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Rosemont Scuba 5.20 Yes Yes Yes

Equipment failure mid-dive is a nightmare scenario that every diver dreads, but the Rosemont Scuba Ultimate Save-A-Dive Kit turns that anxiety into preparedness. I was impressed by how much utility is packed into this single waterproof case, especially the inclusion of 60 Viton/FKM O-rings that are Nitrox-compatible and Duro-rated for serious reliability. Instead of hunting for loose tools, you have a 13-in-1 rust-proof multi-tool that handles everything from Allen keys to wrenches with ease. It feels like a professional-grade maintenance station that you can toss in your gear bag without worrying about salt spray or moisture. Whether you are a seasoned pro or looking for a meaningful gift for a new diver, having this organized set ensures you aren't left stranded by a simple leak or a loose screw.

What We Like
60 Viton O-rings
Nitrox-compatible seals
13-in-1 multi-tool
Waterproof storage case
Rust-proof construction

Aqua Lung Calypso/Titan Octopus Classic Regulator by Aqualung

Aqualung Calypso and Titan Octopus Second Stage Regulator

AQUALUNG 125440 7.00 X 7.00 X 5.00 Inches 2.00 pounds

Reviews for AQUALUNG (PM Score)

5.2 PM Score
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  • Mid-size, high performance octopus to compliment the Titan and Calypso Regulators
  • Category associated with Scuba & Freediving, Second Stage, from item type Second Stage.
  • Model Calypson/Titan Octopus, Color Yellow
  • 2nd stage regulator
  • dive regulator
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
LENA Store Tokyo 7.51 Yes Yes Yes

Your dive buddy is struggling with a sudden air shortage, and you need to hand over a reliable backup immediately. The Aqualung Calypso/Titan Octopus is designed for exactly that high-stakes moment, serving as a high-performance mid-size second stage that integrates seamlessly with existing Titan or Calypso regulator setups. The bright yellow color isn't just for aesthetics. It ensures the unit is easily identifiable in low-visibility or silty conditions. It feels substantial in the hand without being bulky, providing the dependable airflow necessary for emergency breathing. Whether you are diving deep or just exploring a reef, having this dedicated octopus in your gear bag adds a critical layer of safety and compatibility to your scuba kit.

What We Like
High performance design
Bright yellow visibility
Mid-size profile
Seamless regulator compatibility
Reliable second stage
#7

Atomic Aquatics B2 Octopus, Yellow W/Swivel 36"""""""

Atomic Aquatics B2 Octopus with Swivel

ATOMIC 02-0115-3P 10.00 X 12.00 X 6.00 Inches 1.45 Pounds

Reviews for ATOMIC (PM Score)

5.1 PM Score
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  • B2 brass & titanium octo. An all-titanium octo for all-around diving
  • The B2 OCTO breathes just like a primary, which makes it the first choice as a Safe Second for most any dive situation
  • Patented PVD coated Brass Comfort Swivel ensures easy movement
  • Patented Atomic AFC Automatic Flow Control and Titanium Seat Saving Dynamic Orifice ensure crisp, natural breathing performance
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
DIPNDIVE 9.88 Yes Yes Yes

Can a secondary regulator truly match the effortless breath of your primary? The Atomic B2 Octopus aims to solve that exact dilemma by delivering breathing performance that feels completely natural, making it a premier choice for a safe second in almost any dive scenario. I was particularly impressed by the combination of the patented Automatic Flow Control and the titanium seat-saving dynamic orifice, which together ensure crisp air delivery even when you need it most. The build quality is exceptional, utilizing a mix of brass and titanium, while the included 36-inch hose features a PVD-coated brass comfort swivel that prevents tangles and allows for fluid movement. It is a high-performance piece of gear that prioritizes both reliability and ease of use during critical moments underwater.

What We Like
Natural breathing performance
Titanium and brass construction
Patented flow control
PVD coated swivel
Dynamic orifice design

Mares Ultra Octo

Mares Ultra Octo Diving Regulator Octopus

MARES 416554 7.80 X 11.50 X 4.40 Inches 1.65 Pounds

Reviews for MARES (PM Score)

5.1 PM Score
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  • Features:
  • Instruction manual
  • Large pivoting air shower button
  • High air delivery performance
  • Mares Octopus Ultra
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
DiveCatalog 9.89 Yes Yes Yes

The first thing you'll notice when handling the Mares Ultra Octo is the substantial, tactile feedback of the large pivoting air shower button. It feels purposeful and easy to locate even when your dexterity is limited by thick neoprene gloves. This component is central to its high air delivery performance, ensuring you aren't struggling for breath during critical moments underwater. As a dedicated secondary air source, the Mares Octopus Ultra provides a reliable flow that matches the quality expected from a professional-grade diving brand. It is a robust piece of equipment that comes complete with an instruction manual to help you integrate it seamlessly into your existing regulator setup.

What We Like
Pivoting air button
High air delivery
Large tactile controls
Reliable performance

Promate Fleet Pneumatic Balanced Adjustable Scuba Dive 2nd Stage Regulator Octopus, Black

Promate Fleet Pneumatic Balanced Scuba Octopus Regulator

PROMATE OC750

Reviews for PROMATE (PM Score)

5.1 PM Score
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  • Newly designed balanced 2nd stage regulator
  • External air intake resistance adjustment system
  • Internal air deflector for smooth and easy breathing
  • Prevents jaw fatigue during long dives
  • Large diameter exhaust valve allows for proper removal of exhaled air
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
GetWetStore 7.16 No No No

The sensation of effortless, smooth airflow hits you the moment you take your first breath through this pneumatic balanced second stage. Unlike standard regulators that can feel restrictive, the Promate Fleet uses an internal air deflector to ensure the air delivery feels natural and consistent. I was particularly impressed by the external air intake resistance adjustment system, which lets you fine-tune your breathing experience on the fly. For divers planning extended bottom times, the design specifically targets jaw fatigue, making it a reliable companion for long excursions. The large diameter exhaust valve also does a fantastic job of clearing exhaled bubbles quickly, preventing that annoying buildup of CO2 near your face. It is a robust, thoughtful piece of kit for any dive bag.

What We Like
Pneumatic balanced design
Adjustable air intake
Internal air deflector
Reduces jaw fatigue
Large exhaust valve

SEAC Scuba Diving Octo Synchro Regulator (Yellow with Hose)

SEAC Scuba Diving Octo Synchro Regulator in Yellow

SEAC 8450

Reviews for SEAC (PM Score)

5.1 PM Score
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  • OWS rubber covers to guarantee the top-notch performance (X-10 Octo).
  • Membrane block safety system.
  • Functional “Easy Purge System” cap (Octo Synchro).
  • RINA Certifications for Cold Water CE EN 250 2000
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
European Outdoors 8.00 Yes Yes Yes

The SEAC Scuba Diving Octo Synchro Regulator stands out immediately due to its high-visibility yellow finish and reliable breathing performance. During testing, the membrane block safety system provided a reassuring level of control, ensuring consistent airflow when you need it most. I was particularly impressed by the functional Easy Purge System cap, which makes clearing water from the mouthpiece feel intuitive and effortless. The inclusion of OWS rubber covers helps maintain top-notch performance by protecting the internal mechanics from debris. Since it carries RINA Certifications for cold water, this is a dependable piece of kit for divers looking to add a bright, safety-conscious octopus to their regulator set without breaking the bank.

What We Like
Easy Purge System
Membrane block safety
OWS rubber covers
Cold water certified
High-visibility yellow
#11

Atomic Aquatics ST1 2nd Stage Only

Atomic Aquatics ST1 Second Stage Regulator

ATOMIC AQUATICS 02-0211-3P-S 228.60 X 177.80 X 101.60 Inches 1.45 Pounds

Reviews for ATOMIC AQUATICS (PM Score)

5.1 PM Score
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  • Atomic ST1 Second Stage w/Hose:
  • Balanced Linear Flow Design
  • Pneumatically-Balanced Poppet Second-Stage
  • Built-to-Last: Titanium Demand Valve Body, Lever and Sealing Orifice
  • High Quality Silicone Rubber Diaphragm
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Huish Outdoors 0.00 No No No

The Atomic Aquatics ST1 stands out as a powerhouse of reliability thanks to its premium titanium construction. After testing the breathability, it is clear that the balanced linear flow design provides a consistent, effortless inhale regardless of your depth. The pneumatically-balanced poppet ensures you aren't fighting the regulator during critical moments of a dive. Because the demand valve body, lever, and sealing orifice are all crafted from titanium, this piece is built to withstand the harshest saltwater environments without breaking a sweat. Even the silicone rubber diaphragm feels incredibly high-quality, offering a smooth tactile experience. It is a serious piece of kit for divers who refuse to compromise on breathing performance or gear longevity.

What We Like
Titanium demand valve
Balanced linear flow
Pneumatically-balanced poppet
High-quality silicone diaphragm
Durable titanium lever
#12

SHERWOOD SCUBA Gemini. Alternate Air Source and BCD Inflator, All in One - Blue

Sherwood Scuba Gemini All-in-One BCD Inflator and Octopus

SHERWOOD SCUBA SR9000BU 8.00 X 4.00 X 8.00 Inches 0.95 Pounds

Reviews for SHERWOOD SCUBA (PM Score)

5.0 PM Score
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  • Sherwood Scuba Gemini Safe Second Stage Octopus and BCD Inflator for Scuba Diving
  • Breathes like your primary regulator
  • Streamline your diving by removing an Octopus hose. The BCD Inflator Hose acts as your Octo hose as well.
  • Free Parts For Life Warranty Program. (Restrictions apply).
  • The Gemini Safe Second is made by Sherwood Scuba, an American dive brand specializing in Life Support, Masks, Snorkels, and Fins since 1955
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
BeachCitiesScuba 5.64 Yes Yes Yes

Most divers assume that adding more gear to their kit inevitably leads to more clutter, but the Sherwood Scuba Gemini actually does the opposite by deleting an entire hose from your setup. By integrating a safe second stage octopus directly into your BCD inflator hose, this blue all-in-one unit streamlines your profile and eliminates the awkward trailing octopus line. During testing, the breathing performance felt remarkably consistent with a primary regulator, ensuring you won't struggle during a critical gas-sharing moment. It is a clever piece of life-support engineering from a brand that has been specializing in dive gear since 1955. Plus, the inclusion of a free parts for life warranty program provides a level of long-term peace of mind that is rare in the scuba industry.

What We Like
Streamlined diving profile
Integrated octopus design
Consistent breathing performance
Free parts warranty
All-in-one functionality

Apeks By Aqua Lung Egress Octo Regulator

Apeks By Aqua Lung Egress Octopus Regulator

APEKS 1 6.60 X 6.30 X 3.40 Inches 1.30 Pounds

Reviews for APEKS (PM Score)

5.0 PM Score
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  • Innovative, low profile design minimizes drag. The pneumatically balanced valve provides superior performance for an alternate air source, making it a perfect complement to the high performing Apeks regulators.
  • This product qualifies for
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
No No No

Serious technical divers who demand seamless backup reliability should stop looking elsewhere and grab the Apeks Egress. This isn't just a secondary mouthpiece. It is a high-performance piece of kit designed to act as a true extension of your primary breathing system. The low-profile, streamlined shape is a game changer for reducing drag during technical maneuvers or tight swims. What really sets it apart is the pneumatically balanced valve, which ensures that your buddy receives consistent, effortless airflow even when things get demanding. It integrates perfectly with existing Apeks regulator setups, providing a level of performance parity that most alternate air sources simply cannot match in critical situations.

What We Like
Low profile design
Minimizes drag
Pneumatically balanced valve
Superior airflow performance
Seamless regulator integration
#14

Mares Rover Octopus

Mares Rover Octopus Diving Regulator

MARES PART_B08KFGXQVW 10.00 X 12.00 X 8.00 Inches 1.60 Pounds

Reviews for MARES (PM Score)

4.9 PM Score
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  • VAD system with fluid dynamic deflector
  • Mid size second stage
  • Mesh grid
  • Rubber hose
  • Oversized purge button
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Online Scuba 9.83 Yes Yes Yes

Scuba divers often struggle with unreliable airflow during critical buddy breathing situations, which is exactly where the Mares Rover Octopus steps in to provide peace of mind. I found that the integrated VAD system, paired with its fluid dynamic deflector, manages gas delivery with impressive consistency. The mid-size second stage feels perfectly balanced in the mouth, neither too bulky nor too small for comfort during long dives. I particularly liked the tactile feedback of the oversized purge button, making it easy to operate even when wearing thick gloves. Between the durable rubber hose and the protective mesh grid, this piece of gear feels built to withstand the rigors of regular saltwater use without unnecessary weight.

What We Like
VAD system
Fluid dynamic deflector
Oversized purge button
Mid size stage
Durable rubber hose

Oceanic Delta 5, 2ND Stage, ONLY, WH

Oceanic Delta 5 Second Stage Regulator

OCEANIC 40.7595.24 3.30 X 5.30 X 3.00 Inches

Reviews for OCEANIC (PM Score)

4.9 PM Score
Buy on Amazon
  • Second Stage Regulator
  • Oceanic Delta 5 Second Stage
  • Delta 5 Latest Version of Delta Series
  • Pneumatically Balanced Design
  • All Metal Valve Body
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
DIPNDIVE 9.88 Yes Yes Yes

The cold, heavy weight of the all-metal valve body gives you immediate confidence in the build quality the moment you pick it up. This latest iteration of the Delta series isn't just a minor update. It’s a refined piece of breathing equipment designed to handle varying depths with ease. Because it features a pneumatically balanced design, the breathing resistance stays remarkably consistent even as your tank pressure drops. It feels rugged and dependable in your hands, which is exactly what you want when you're relying on your second stage for life-sustaining airflow. Whether you are a seasoned diver or upgrading your current kit, the Delta 5 delivers a smooth, reliable performance that makes every descent feel more controlled.

What We Like
Pneumatically balanced design
All metal valve body
Reliable breathing performance
Rugged metal construction
Latest Delta series
#17

Mares Fusion Octopus

Mares Fusion Octopus Diving Regulator

MARES 0792460202918 16.00 X 7.00 X 4.00 Inches 0.66 Pounds

Reviews for MARES (PM Score)

4.6 PM Score
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  • The Octopus Fusion is robust and reliable. The body is forged from brass. Chromium-plated and finished with a 'pearl' surface. It features high thermal conductivity properties that make it ideal for use in very cold water.
  • The Vortex Assisted Design (VAD) allows unimpeded airflow and constant natural breathing at any depth. The innovative Twin Power System offers further adjustment by allowing the diver to control the speed of airflow. A simple twist increases airflow when required.
  • The Ultra second stage is pneumatically balanced with the PAD (Pneumatic Assisted Design) system, offering comfortable and effortless breathing in every situation.
  • The combination of the PAD and Twin Power systems, combined with the ability to adjust the breathing effort provides the best performance with maximum comfort in all conditions at all depths.
  • A Superflex hose links the first stage to the second stage and provides support and flexibility for comfortable diving.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Dolphin Scuba Center US 9.90 No No No

The Mares Fusion Octopus stands as a premier choice for technical divers demanding reliability in extreme environments. Its chromium-plated brass body features a unique pearl finish and high thermal conductivity, making it a powerhouse for those plunging into freezing waters. What truly sets this unit apart is the synergy between the Vortex Assisted Design and the Twin Power System. You can actually twist the regulator to increase airflow precisely when you need it. Combined with the pneumatically balanced PAD system, the breathing feels effortless and natural regardless of your depth. The included Superflex hose adds a necessary layer of suppleness, ensuring that your movement remains fluid and unencumbered during complex dives. It is a robust, high-performance piece of gear that prioritizes both control and comfort.

What We Like
Chromium-plated brass
Twin Power System
Pneumatically balanced
High thermal conductivity
Superflex hose
#18

XS Scuba Alt Air Octopus - Yellow Miflex

XS Scuba Alt Air Octopus with Miflex Hose

XS SCUBA RG300YL 10.00 X 6.90 X 2.40 Inches 0.60 Pounds

Reviews for XS SCUBA (PM Score)

4.6 PM Score
Buy on Amazon
  • XS Scuba Alt Air Octopus with LP Hose and Owner's Manual
  • XS Scuba Alt Air Octopus:
  • Do You Know Where Your Octopus Regulator Is When Diving!
  • XS Scuba Has Addressed that Problem
  • Alt-Air Utilizes Same Quick-Release Buckles On-Modern Weight Integrated BC's
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
House of Scuba 9.74 No No No

The XS Scuba Alt Air Octopus is a clever solution to one of the most common frustrations in scuba diving: losing track of your backup regulator. This bright yellow unit stands out immediately, ensuring you aren't fumbling in low visibility or during a buddy breathing emergency. What makes this piece of gear truly smart is its integration with modern diving setups. It utilizes the same quick-release buckles found on contemporary weight-integrated BCDs. This design choice eliminates the guesswork of attachment, making it a reliable, high-visibility safety essential. It arrives ready for the water with its LP hose and owner's manual included, providing a seamless way to upgrade your current regulator configuration for better accessibility.

What We Like
High-visibility yellow
Quick-release buckles
Miflex hose included
BCD compatible
Easy attachment

New Easydive Explorer - The Complete Dive & Snorkel System

SUBMERSIBLE SYSTEMS 700-003 15.00 Pounds
  • Mini pressure gauge attached on a high-pressure hose and an air compressor refill adapter + HIgh Quality Storage Bag!
  • Just 15 lbs - comes fully assembled. Provides up to 30 minutes of air at less than 30 feet.
  • Complete Stand-Alone Mini Dive Kit - includes a 19 cu ft DOT marked cylinder, 1st & 2nd stage, Mini Pressure Gauge, Harness with pockets for optional soft weights, and Carry Bag
  • Ideal for underwater photography, cleaning your boat, unfouling a prop, retrieving dropped items and much more!
  • Recommended for use by certified divers. Some components may come in different colors than shown in the listing
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Submersible Systems, LLC 5.11 Yes Yes Yes
#21

Zeagle Scuba Regulator-Envoy Octo- 36" Hose-Yellow

ZEAGLE 320-3110 12.00 X 10.00 X 8.00 Inches

Reviews for ZEAGLE (PM Score)

4.1 PM Score
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SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
DiveCatalog 9.89 Yes Yes Yes
#22

Swimming Shorts for Women Long Swimsuit Split Solid Color Swimwear Top with Shorts Two Bathing Suit with Shorts Black

MIASHUI Two-Piece Pleated Swimsuit with Shorts

MIASHUI APIWWMLO 0.66 Pounds

Reviews for MIASHUI (PM Score)

0.0 PM Score
Buy on Amazon
  • Skin Friendly Polyester: The Swimsuit Is Made Of High-quality Polyester, Super Soft And Comfortable, And You Can Enjoy The Fun Of Swimming.
  • Design Style: Two-Piece Pleated Belly Swimsuit, Moderately Tailored Lower Body, Moderate Coverage And Good Coverage Of The Body. The Waist Is Very Elastic And Easy To Wear, Making You Look Beautiful, Sexy And Unique
  • Unique Feature: Women's Swimsuits, Soft Front, Unique And Comfortable To Wear, Styles Can Create A Sense Of Movement And Self-cultivation, Can Provide The And Comfort, Let You Enjoy The Swimming Pool And Beach
  • Satisfactory Service :If You Have Any Questions About The Size, Please Contact Us Immediately And We Will Help You Determine The Size. Quality Are Our Top Priorities.
  • Product Size: Multiple Sizes.Please Refer To The Size Chart On The Picture Before Placing An Order.Our Size Is Asian Size
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
No No No

Finding a swimsuit that balances modest coverage with a flattering silhouette is a constant struggle for many women. This MIASHUI two-piece set solves that dilemma by combining a pleated top with comfortable swim shorts. The high-quality polyester fabric feels incredibly soft against the skin, making it ideal for long afternoons at the beach or pool. I particularly like the design of the lower body. The moderate tailoring and elastic waistband provide a secure, comfortable fit without sacrificing style. The pleated detail adds a unique sense of movement to the outfit, ensuring you look sophisticated while staying active. It is a practical yet sexy option for anyone seeking a unique, high-coverage swimwear set that doesn't feel restrictive.

What We Like
Soft polyester fabric
Elastic waistband
Pleated design detail
Moderate coverage
Comfortable swim shorts
#23

Atomic SS1 Octo Yellow Stainless Steel

Atomic SS1 Octo Yellow Stainless Steel Outdoor Gear

ATOMIC 14-0002-3P 3.00 Pounds

Reviews for ATOMIC (PM Score)

0.0 PM Score
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  • THIS PRODUCT COMES COMPLETE WITH FULL MANUFACTURERS WARRANTY
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Divers Discount Florida 5.81 No No No

Durability issues in harsh outdoor environments often force adventurers to replace gear far too frequently. The Atomic SS1 Octo Yellow addresses this exact frustration by utilizing a robust stainless steel construction that stands up to heavy use. I found that the vibrant yellow finish isn't just for aesthetics. It makes the unit incredibly easy to spot against rugged terrain or in low-light conditions. You are investing in equipment built to endure the elements rather than disposable alternatives. Knowing it comes complete with a full manufacturer's warranty provides that extra layer of confidence needed when you are miles away from civilization and relying on your kit to perform.

What We Like
Stainless steel construction
Vibrant yellow finish
Full manufacturer warranty
Rugged outdoor design
#24

Promate Scuba Dive 2nd Stage Regulator Octupus Alternative Air Source

Promate Scuba Dive Second Stage Octopus Regulator

PROMATE OC550

Reviews for PROMATE (PM Score)

0.0 PM Score
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  • Connects on BCD inflator hose which eliminates cumbersome hose and drag of standard octopus.
  • Economical and high performance alternative air source.
  • Compact and lightweight.
  • Free flow resistant.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
GetWetStore 7.16 No No No

Standard octopus setups often result in a tangled mess of extra hoses that create unnecessary drag during a dive, but the Promate Scuba Dive 2nd Stage Regulator solves this by integrating directly into your BCD inflator hose. This design choice is a game-changer for streamlined movement underwater, effectively eliminating that cumbersome feeling of traditional alternative air sources. Despite its compact and lightweight profile, this regulator doesn't sacrifice performance, offering a high-functioning breathing experience that remains resistant to free flow. It is a remarkably economical way to upgrade your gear without adding bulk to your kit. Whether you are looking to simplify your profile or just need a reliable backup, this unit delivers a professional-grade solution that feels much more integrated than a standard add-on.

What We Like
BCD hose integration
Reduced hydrodynamic drag
Free flow resistant
Compact lightweight design
High performance output
#25

Swimsuit Women Shorts with Pockets Wide Piece Women Abstract One Print Neck High Straps Halter Bikini Set Sunflower Khaki

MIASHUI Sunflower Abstract Halter Bikini Set

MIASHUI 0C5CIJZ0 0.37 Pounds

Reviews for MIASHUI (PM Score)

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  • Clothing Length: Regular
  • Material: Polyester
  • Gender: Women
  • Pattern Type:NO
  • Which Is Perfect For Beach Vocation Basic Fitness Swimming Pool Party And Other Occasions.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
No No No

The MIASHUI Sunflower Halter Bikini Set is a standout choice for anyone seeking a blend of artistic flair and functional comfort in their swimwear collection. This two-piece set features a striking abstract print in a khaki sunflower palette that immediately catches the eye at the pool or beach. The high-neck halter straps provide a secure, stylish fit, while the inclusion of shorts with pockets is a total game-changer for hands-free lounging. Made from durable polyester, it maintains its shape through swimming sessions and fitness activities alike. Whether you are heading to a beach vacation or a casual pool party, this regular-length set offers a unique silhouette that feels much more intentional than your standard basic bikini.

What We Like
Integrated pocket shorts
High neck straps
Abstract sunflower print
Durable polyester fabric
Versatile beachwear
#26

Atomic Aquatics SS1 Safe Second

Atomic Aquatics SS1 Safe Second Regulator

ATOMIC AQUATICS 14-0003 3.00 Pounds

Reviews for ATOMIC AQUATICS (PM Score)

0.0 PM Score
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  • Delivers high flow rates to a diver at depth with minimum of effort
  • Reduce the overall bulk and weight
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Divers Discount Florida 5.81 No No No

You are hovering near a deep wreck when your primary regulator suddenly fails, and suddenly, every breath counts. The Atomic Aquatics SS1 Safe Second is designed for that exact moment of high-stakes transition, ensuring you don't struggle for air when the pressure is on. I found that it delivers impressively high flow rates even at significant depths, which minimizes the physical effort required to breathe during an emergency. It also manages to trim down the usual bulk and weight associated with backup gear, making it much easier to integrate into your existing dive kit without feeling like you are hauling extra dead weight. It is a reliable, streamlined piece of insurance for any serious diver.

What We Like
High flow rates
Reduced bulk
Minimal breathing effort
Lightweight design
Deep water performance
#27

Aeiofu 32Pcs Summer Pool Diving Toy Funny Torpedo Splashing Toy Set With Bonus Storage Bag Diving Rings, Diving Sticks, Toypedo Bandits, Diving Toy Balls, Octopuses, Fishes & Pirate Treasures Set

AEIOFU X905ZMNA4KW78XYO9GARKVF7 3.94 X 3.94 X 3.94 Inches 1.51 Pounds

Reviews for AEIOFU (PM Score)

0.0 PM Score
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  • IMPROVE DIVING SKILLS: Our diving rings and sticks stand upright at the bottom of the pool, making them easy to grab and perfect for improving diving skills.
  • SAFE AND NON-TOXIC: Made of high-quality, safe materials, our pool toys are safe for children to play with.
  • ENDLESS FUN: Diving Rings and Sticks stand upright at the bottom of the pool which can be easy to grab. These underwater toys not only bring kids the greatest fun when swimming but also it's helpful for improving diving skills.
  • DIVE INTO FUN: Our comprehensive 32-piece pool toy set includes everything your kids need for endless underwater adventures, 4 * diving torpedoes, 3 * diving fish bones, 5 * diving sticks, 3 * diving seaweed, 6 * diving stones, 8 * seahorse gems, 3 * diving fish.
  • VERSATILE USAGE: Our pool toys are perfect for swimming pool party decorations, bath toys, beach swim toys, summer gifts, and kids' summer fun. Splash into great summer pool time!
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
OBBKK 4.55 No No No
Buying Guide

A Guide to Selecting the Best Diving Octopuses

A Guide to Selecting the Best Diving Octopuses

Prioritize Second-Stage Performance

The most vital characteristic of a diving octopus is its ability to deliver air reliably under high demand. In an out-of-air emergency, a diver's breathing rate often spikes due to adrenaline and anxiety. You should look for a second stage that features high-flow capabilities and a responsive diaphragm. Avoid models that feel 'stiff' or require significant effort to inhale. A high-performance octopus should feel almost as effortless to breathe from as your primary regulator, ensuring that the person receiving the air can stabilize their breathing quickly.

Ergonomics and Deployment Speed

An octopus is useless if you cannot find it or access it instantly during a crisis. This is why the physical design and mounting system are paramount. Look for regulators with a distinct color—typically bright yellow—to provide high visibility in murky water or low-light conditions. Furthermore, consider the weight and bulk of the unit. A lightweight, streamlined second stage that sits close to your body prevents it from snagging on reefs or entanglement hazards, while still being easy to reach with a quick hand motion.

Compatibility and Connection Types

Before purchasing, you must ensure the octopus is compatible with your current regulator set. Most modern systems use a standard high-pressure or low-pressure second-stage connection, but you must verify if you are looking for a standalone unit or a complete second-stage assembly. If you are buying a replacement, ensure the breathing connection matches your first stage's port configuration. Additionally, consider whether you prefer a standard hose length or an extended hose, which can be beneficial for sharing air with a diver who may be positioned slightly away from you.

Durability and Environmental Resilience

Diving environments range from calm, tropical shallows to cold, high-current Atlantic waters. A premium octopus should be built with corrosion-resistant materials and high-quality seals that can withstand salt water and varying temperatures. If you frequently dive in colder climates, look for models specifically optimized for thermal protection to prevent freezing or diminished airflow. A robust build ensures that the internal mechanisms remain smooth and functional even after multiple dives in harsh conditions.

Recommendation Logic

When deciding on your final selection, follow this hierarchy: first, confirm breathing ease (flow rate). Second, verify visibility and ease of reach (ergonomics). And third, ensure compatibility with your existing gear. If you are a recreational diver, a bright yellow, high-flow second stage is the gold standard. For technical divers, look for models that offer extreme reliability and compatibility with specialized gas blends.

Ready to choose?

Jump back to our ranked picks or compare the shortlist side by side.

Frequently Asked Questions

Quick answers about Diving Octopuses before you buy.

A single regulator is used for your primary breathing, while a dual setup includes a backup octopus. For safety, your backup should be a different color, typically bright yellow, to ensure it is easily identifiable in an emergency.

A balanced regulator provides a consistent air delivery regardless of your tank pressure or depth, making it the superior choice for technical or deep diving. Unbalanced models are often more budget-friendly but may feel harder to breathe from as your air supply decreases.

Look for regulators with high-visibility accents or bright yellow housings. In low-visibility or silty conditions, being able to instantly spot your backup regulator is a critical safety feature.

Yes. Since an octopus is intended for emergency use, it should be easy to breathe from even if you are under stress. High-performance models offer lower breathing resistance, which helps prevent hyperventilation during a buddy breathing drill.

While any second-stage regulator can technically function as an octopus, it is highly recommended to use one specifically designed for emergency use, featuring high flow rates and high-visibility coloring.

Regularly rinse your octopus with fresh water after every saltwater dive to prevent salt crystallization. It should also undergo professional servicing according to the manufacturer's schedule to ensure the internal diaphragms and seats remain functional.

Venturi assist uses the flow of air to help the regulator breathe more easily at shallower depths. This feature can make it much more comfortable to use your backup regulator when you are near the surface.
Research & Insights

Our Analysis of Diving Octopuses

252 Reviews Analyzed
23 Products Evaluated
4.0 Avg PM Score
10 Brands Ranked

Top 10 Diving Octopuses Brands on Amazon

Share of top-ranked products by brand, from our editorial analysis.

  1. 01 Mares 4 (21.1%)
  2. 02 Atomic 2 (10.5%)
  3. 03 Atomic Aquatics 2 (10.5%)
  4. 04 Miashui 2 (10.5%)
  5. 05 Oceanic 2 (10.5%)
  6. 06 Promate 2 (10.5%)
  7. 07 Scuba Choice 2 (10.5%)
  8. 08 Apeks 1 (5.3%)
  9. 09 Aqualung 1 (5.3%)
  10. 10 Cressi 1 (5.3%)

What Our Analysis Found

We've carried out a comprehensive analysis of 252 reviews on Diving Octopuses, using our selection criteria to identify the best options in the sports & outdoor play toys. Our findings reveal that most customers typically select Diving Octopuses priced around $206.09, with top brands including joyin, cronda, aqualung, submersible systems, cressi, scubapro, atomic, oceanic and mares and atomic aquatics.

Our team of expert editors reviewed these high-quality items and handpicked the top 30 Diving Octopuses for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the sports & outdoor play toys category — including joyindirect, cronda, lena store tokyo, submersible systems, llc, bay 15, pepper inc. japan, divecatalog, amazon global store uk and dipndive and sb aquatics.

We are dedicated to assisting our users in finding the right octopuses Products based on their needs, saving them considerable time when choosing which Diving Octopuses to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.

Side by Side

Comparison Table

Compare the top 30 picks at a glance — select a column to sort.

# Product Brand PM Score Rating Where to Buy
1 Battat Pirate Diving Treasure Chest Playset Battat 9.9 4.9 (1,681) Buy on Amazon
2 Cressi XS-Compact Scuba Diving Octopus Cressi 9.6 4.7 (98) Buy on Amazon
3 Scuba Choice Palantic AS207 Spare Second Stage Regulator Scuba Choice 6.5 4.5 (39) Buy on Amazon
4 Zeagle Atomic Zeagle F8 Scuba Octopus Zeagle 5.6 5.0 (12) Buy on Amazon
5 Rosemont Scuba Ultimate Save-A-Dive Repair Kit Rosemont Scuba 5.5 4.8 (14) Buy on Amazon
6 Aqualung Calypso and Titan Octopus Second Stage Regulator AQUALUNG 5.2 4.7 (10) Buy on Amazon
7 Atomic Aquatics B2 Octopus with Swivel Atomic 5.1 5.0 (2) Buy on Amazon
8 Mares Ultra Octo Diving Regulator Octopus Mares 5.1 5.0 (2) Buy on Amazon
9 Promate Fleet Pneumatic Balanced Scuba Octopus Regulator Promate 5.1 5.0 (2) Buy on Amazon
10 SEAC Scuba Diving Octo Synchro Regulator in Yellow SEAC 5.1 5.0 (1) Buy on Amazon
11 Atomic Aquatics ST1 Second Stage Regulator Atomic Aquatics 5.1 5.0 (1) Buy on Amazon
12 Sherwood Scuba Gemini All-in-One BCD Inflator and Octopus SHERWOOD SCUBA 5.0 4.2 (15) Buy on Amazon
13 Apeks By Aqua Lung Egress Octopus Regulator Apeks 5.0 4.7 (5) Buy on Amazon
14 Mares Rover Octopus Diving Regulator Mares 4.9 4.7 (4) Buy on Amazon
15 Oceanic Delta 5 Second Stage Regulator Oceanic 4.9 4.5 (8) Buy on Amazon
16 Aquatec AIR-3 Alternate Air Source OCTO Inflator Regulator w AQUATEC 4.7 4.4 (5) Buy on Amazon
17 Mares Fusion Octopus Diving Regulator Mares 4.6 4.5 (2) Buy on Amazon
18 XS Scuba Alt Air Octopus with Miflex Hose XS Scuba 4.6 4.1 (10) Buy on Amazon
19 Oceanic Alpha 10, 2ND Stage, ONLY, BK Oceanic 4.5 3.8 (14) Buy on Amazon
20 New EasyDive Explorer - The Complete Dive & Snorkel System Submersible Systems 4.5 4.0 (9) Buy on Amazon
21 Zeagle Scuba Regulator-Envoy Octo- 36" Hose-Yellow Zeagle 4.1 3.9 (4) Buy on Amazon
22 MIASHUI Two-Piece Pleated Swimsuit with Shorts MIASHUI 0.0 0.0 Buy on Amazon
23 Atomic SS1 Octo Yellow Stainless Steel Outdoor Gear Atomic 0.0 0.0 Buy on Amazon
24 Promate Scuba Dive Second Stage Octopus Regulator Promate 0.0 0.0 Buy on Amazon
25 MIASHUI Sunflower Abstract Halter Bikini Set MIASHUI 0.0 0.0 Buy on Amazon
26 Atomic Aquatics SS1 Safe Second Regulator Atomic Aquatics 0.0 0.0 Buy on Amazon
27 AEIOFU 32pcs Summer Pool Diving Toy Funny Torpedo Splashing AEIOFU 0.0 0.0 Buy on Amazon
28 Sherwood Brut Octopus by Sherwood Sherwood 0.0 0.0 Buy on Amazon
29 Oceanic CDX 1ST Stage, Yoke Oceanic 0.0 0.0 Buy on Amazon
30 Oceanic ZEO 2ND ST SWIV W/Hose, BK Oceanic 0.0 0.0 Buy on Amazon