Top Rated Gear

Atomic Aquatics Z2 Octopus, Yellow

SKU: ATMZ2OYL MFR: 02-0360-3P

Key Features

  • This scuba diving octopus is Nitrox compatible, ready for oxygen-enriched mixtures up to 40% for versatile use
  • Enjoy customized comfort with the adjustable 2nd stage, featuring a rapid adjustment knob for easy control
  • Built to last, the Atomic Aquatics Z2's durable fiberglass reinforced nylon housing ensures years of dependable dives
  • Lightweight design at just 12.3 oz with hose makes this Atomic Aquatics octopus a compact, travel-friendly dive buddy
  • Get peace of mind with the 36" LP hose, offering the perfect length for easy deployment as a safe second
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$54.99

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$69.99

Available to U.S. customers only.

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Q&A

Questions & Answers

Shopper : Does it come factory sealed? Or is there an option for that?JOE S : There is no seal for the second stages. The Z2 and the Z3 both come in non sealed and sealed options. You can purchase either the 1st stage by itself or the kit. This particular item is an Octo and can only be purchased by itself.PHILLIP B : Atomic makes an environmental seal that can be installed in any of their first stages. The cost of the part is about $20. The Z2 octopus here is the second stage and there is no special seal to be had. The Z2/Z3 can be purchased in different configuratoons that include a sealable first stage. Note thevthe Z3 is essentially a Z2 with a swivel hose.Kevin M : The sealing happens in the first stage, where the regs connect to the tank. That option would be selected with the z3 main regulator.
Shopper : Are there any differences between the second stage z2 and the z2 octo besides color and maybe hose length?YAN G : Exactly the same internal components. Only hose length and color are different.JENNIFER R : I have used both during a dive. I actually cannot tell the difference between the two in ease of breathing. The mouth piece feels the same and you can breathe through both pieces easily.
LEE B : What color is the hose? Can is be replaced by a high viz hose if it is black?JUNE H : This octopus comes with a black hose and it can be replaced if needed. MIKE F : The color of hose is blackJENNIFER R : The hose is black. I would imagine you could replace just as if it the hose got torn you could replace. I would contact atomic to be sure. Rodrigo A : The hose is black. Yes, you can replace it if you want.
ANDREA B : Does this come with a hose, and if so, how long is it? JohnMICHAEL C : Yes it comes with a 34 in hose.
Shopper : Why Did You Choose This?DONALD C : Compatible with all Atomic 1st stages. When the regulator is serviced only one brand needs to be considered by the shop.ANTHONY L : Matches my primary regulatorJONATHAN Y : I got the atomic Z3 for a main regulator, so I got this one to match. But seriously if you're using my octopus, we're likely heading for the surface and I'm guessing you're just happy to be breathing and not really concerned with how easy it is.kelly v : Recommended and keeps manufacturer the same!

Reviews about this item

Review Summary

2023-05-11T23:00:07

Rated 5 out of 5

Great Reg!

Great product! Atomic regs breath the same at depth than at the surface automatically at all price points.

DAVID H.

2022-06-23T04:04:17

Rated 5 out of 5

Awesome Octo

Easy breathing at all depths and in all positions. Hose a little stiff and tugs on the mouth piece a little. I addressed this by changing out the included hose with a braided MiFlex hose (inexpensive Atomic Aquatics Jam Nut required when using non-Atomic hoses).

Phillip B.

2016-08-07T07:15:37

Rated 5 out of 5

Great Reg. Great service

Regulator arrived quickly. I am very pleased with this reg. One of the best I had so far (been diving for over 20 years now)

Yusimov O.

2016-07-07T05:55:01

Rated 5 out of 5

Great backup Octopus

I wanted a backup Octopus on my rig. I have B2 Primary with SS1 inflator/backup. After doing about 30 dives I decided to add this for easier access for my dive buddy. He hasn't needed my backup to this point. I haven't used it, but will shortly. I also thought adding a Hi-Vis yellow hi-flex hose would help my buddy find it when he needs it.

Paul B.

2014-02-18T19:00:00

Rated 5 out of 5

Outstanding

I bought the z2 along with this octo and they are outstanding regs. I have dove with them to 100ft and am throughly impressed. The price point is an added bonus.

Jason

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Atomic Aquatics Z2 Octopus, Yellow Specifications

  • Adjustable 2'nd Stage

    Yes, Rapid Adjustment Knob

  • 2'nd Stage Type

    Pneumatically-Balanced

  • Nitrox Compatible

    Oxygen-Enriched Mixtures Up to 40%

  • Materials

    Housing: Fiberglass Reinforced Nylon
    Hardware: Titanium and 316 Grade Stainless Steel
    Mouthpiece & Diaphragm Silicone Rubber

  • Hose Thread

    3/8"

  • Hose Length

    36" (91.4cm)

  • Total Weight

    12.3 oz (349 g) w/Hose

  • UPC Code

    882689087585

5 Accessories for Atomic Aquatics Z2 Octopus, Yellow

  • All Accessories (5)
  • Regulator Accessories (5)

About Atomic Aquatics Z2 Octopus, Yellow

FEATURED REVIEWS

Great backup Octopus

By Paul B.

I wanted a backup Octopus on my rig. I have B2 Primary with SS1 inflator/backup. After doing about 30 dives I decided to add this for easier access for my dive buddy. He hasn't needed my backup to this point. I haven't used it, but will shortly. I also thought adding a Hi-Vis yellow hi-flex hose would help my buddy find it when he needs it.

Great Reg!

By DAVID H.

Great product! Atomic regs breath the same at depth than at the surface automatically at all price points.

Most manufacturers produce just an economy and a performance octopus model. Yet, even their high-end octopus cannot come close to matching the performance of the Atomic Aquatics safe seconds. Each Atomic Aquatics Octopus is designed, and precision built to perform as perfectly as its primary model counterpart. So, when you need it, you know exactly what to expect.

The Z2 Safe Second Stage features critical metal components of the demand valve that are made of titanium or 316-stainless-steel and is completely corrosion proof. The demand valve housing is machined from brass and plated with an exotic zirconium plating that exponentially outlasts conventional chrome plating.

The Atomic Aquatics Z2 Octopus diaphragm is made from high quality silicone rubber. This pneumatically balanced poppet second stage has Atomic Aquatics patented seat saving dynamic orifice which unlike most second stage orifices is a floating valve design which reduces wear on the second stage poppet seat when the regulator is not pressurized adding life to this important seal.

The Z2 Second-Stage Regulator is equipped with Atomic Aquatics patented Automatic Flow Control (AFC). This unique diaphragm activated vain automatically controls the flow and Venturi effect of the second stage for optimum breathing resistance at all depths. The second stage does have a rapid adjustment knob for manual second stage de-tuning in rare special situations. The Z2 Octopus has a bright yellow front cover for easy identification in an out-of-air-emergency and a 36" (91.4cm) 3/8" threaded low-pressure (LP) hose. The regulator is also equipped with a dual silicone comfort fit mouthpiece with tear resistant bite tabs and weighs 12.3 oz. (349 g) with the hose.

Atomic Aquatics Z2 Octopus, Yellow Features

  • Atomic Aquatics Z2 Octopus, Yellow
  • Precision-Built to Perform-as-Perfectly as Primary Model
  • Factory-Rated for Oxygen-Enriched Mixtures Up to 40%
  • Demand Valve Body: Zirconium Plated Brass
  • Critical Metal Components of Demand Valve:
    Titanium or 316 Stainless Steel
    Completely-Corrosion-Proof
  • Diaphragm: High Quality Silicone Rubber
  • Pneumatically-Balanced Poppet Second-Stage
  • Atomic Aquatics Patented Seat Saving Dynamic Orifice
  • Orifices is a Floating Valve Design, Reduces Wear on Second-Stage Poppet Seat
  • Atomic Aquatics Patented Automatic Flow Control (AFC):
    Unique Diaphragm Activated Vain
    Automatically Controls the Flow and Venturi-Effect
    Optimum Breathing Resistance at All Depths
  • Rapid Adjustment Knob: Manual Second Stage De-Tuning in Rare Special Situations
  • Bright Yellow Front Cover for Easy-Identification in Out-of-Air-Emergency
  • Dual Silicone Comfort Fit Mouthpiece w/Tear-Resistant Bite Tabs
  • 36" (91.4cm) 3/8" Threaded Low Pressure (LP) Hose
  • Weight: 12.3 oz. (349 g) with LP Hose

Warranty Information

This product has a limited lifetime warranty.

Key Features

  • This scuba diving octopus is Nitrox compatible, ready for oxygen-enriched mixtures up to 40% for versatile use
  • Enjoy customized comfort with the adjustable 2nd stage, featuring a rapid adjustment knob for easy control
  • Built to last, the Atomic Aquatics Z2's durable fiberglass reinforced nylon housing ensures years of dependable dives
  • Lightweight design at just 12.3 oz with hose makes this Atomic Aquatics octopus a compact, travel-friendly dive buddy
  • Get peace of mind with the 36" LP hose, offering the perfect length for easy deployment as a safe second

What's in the box:

  • Atomic Aquatics Z2 Octopus with LP Hose