Atomic Z2 Octopus
Atomic Z2 Octopus

Atomic Z2 Octopus

Sale price£249.00

Like the entire Atomic Octo line, the Atomic Z2 Octopus is a clone of the Z2 primary second stage.


Dispatched 5 to 10 days

Contact Form & Details

How can we help?

If you need to contact us for any issue or assistance, you can do so online by filling out the online Contact Form, emailing us at or calling us on +44(0)1305 824 555. If it's about a purchase you've made for us please also include your order number.

Our brick-and-mortar store Underwater Explorers based on Portland, Dorset is staffed 7 days a week, including weekends and bank holidays. As it's an active store visited by divers from around the country and world regularly, if we can't make it to the phone for any reason please leave a message and we'll get back to you asap.

Any queries are usually answered the very same day and at most within 24 hours.


Why Portland?

We’re located on the Isle of Portland (in Dorset) because Portland has been one of the most popular scuba diving locations in the United Kingdom even before we set up operations here back in the year 2000.

On one side, we’re minutes away from the sheltered waters of Portland Marina and Harbour, while on the other, it’s just a brief walk to reach our famous scuba diving destination Chesil Cove and start of the 16-mile-long Chesil Beach.  

Portland’s location makes it ideal for scuba diving, freediving, snorkelling and other surface water sports activities. 

Check out how many wrecks we have around here by clicking on Scimitar Diving's Wreck & Dive Sites chart!

Alongside dive clubs, many instructors and dive schools travel here to train and offer scuba diving certification ranging from open water diver to mixed-gas tech diving or rebreather diving levels.

Whether you’re doing a boat dive from Portland Marina or Castletown or a shore dive at Chesil Cove, Portland is well known for offering many possibilities: Reef diving to wreck diving and night diving, underwater photography or underwater videography. Anything other than cave diving is possible here.

Likely being the best-stocked diving shop in the UK, at Underwater Explorers we offer in-store scuba diving equipment advice and sales, as well as gas fills, to locals and visitors (read About Us).

But... If you’re googling “scuba diving shop near me” like some, look no further, there's DirDirect online.

Here at DirDirect, we list our cutting-edge equipment for worldwide delivery and we’ve got you covered whatever your level of diving: We’re your local dive store wherever you are in the world.

All that with over 20 years of experience especially in technical diving, from training to equipment, advice and sales.


Underwater Explorers, Unit 1, Maritime Business Centre
Mereside, Portland, Dorset, DT5 1FD


Like the entire Atomic Octo line, the Atomic Z2 Octopus is a clone of the Z2/Z3 primary second stage. Pair it confidently with any Atomic primary and know it will perform reliably and effortlessly.

Z2 Zirconium Octo

Atomic Aquatics places the same priority on performance and emphasis on engineering for every product.

Atomic engineers developed a unique Zirconium over Chrome over Brass plating process to deliver corrosion resistance 3-4 times that of conventional chrome plating.

The Z Series second stage lever, orifice and spring are Titanium, delivering natural easy breathing – the signature of all Atomic Regulators.

Automatic Flow Control

The Z2 Octopus incorporates the same patented Atomic features that make Atomic primary regulator models the best in diving. The Atomic AFC Automatic Flow Control and Titanium Seat Saving Dynamic Orifice are identical to the Z2/Z3 primary second stage. The Z2 Octopus just looks different with the high-visibility Neon Yellow cover and extra-long 36” hose.

You shouldn’t have to think about breathing when you dive. The exclusive Atomic AFC helps you breathe naturally at any depth without thinking about making adjustments.

The Atomic AFC eliminates the manual adjustment normally needed to regulate Venturi effect as you dive deeper. No dials to turn or buttons to push. A Rapid Adjustment Knob is included for special situations like surf entry or octo use.

Z2 Octopus Features

  • Zirconium-plated Brass and Titanium metal components make this Z2 a real workhorse.
  • Patented Atomic AFC – Automatic Flow Control with Rapid Adjustment Knob for manual detuning in special situations.
  • Patented Atomic Titanium Seat Saving Dynamic Orifice prevents wear of the low-pressure seat that extends the service interval, and improves reliability.
  • Compact with a low-profile exhaust deflector that fits easily into pockets.
  • Bright Neon Yellow flexible front cover for high visibility.
SKU: 02-0360-3P