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Atomic Z3 Swivel Regulator

SKU: ATMZ3RY MFR: 03-0090-3P
2 reviews
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Atomic Z3: Picture 1 regular

About Atomic Z3

Featured Reviews

See all 2 reviews

Great Regulator


This is a great regulator. I love it. The only thing to consider is that if you ever think you might decided to use a high pressure tank (and you probably will) get the DIN valve on the first stage and buy a yoke converter. I switched mine useing a DIN converter kit, which was easy enough, but taking that off and putting a yoke back on requires having the right tools and ideally you don't want to do it too often. However, attaching a yoke converter to a DIN valve is easier. You can put it on ...

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Atomic Aquatics most compact and economical regulator system, the Z3 may be the least expensive of the Atomic line, but its combination of performance, ergonomics and materials are unmatched by the most expensive competitors. Built upon the B1/T1 platform, it shares the same breathing performance and patented features. The Z3 has all the features of the Z2 and then some. The Z3 is a is a balanced flow-thru piston design using Atomics jet seat high flow stainless steel piston. Exclusive high-pressure piston seal system is self-lubricating for low friction and low maintenance. The Atomic jet seat system has no sharp edges that can damage the seat over time, like most competitors' first stages. Instead, Atomic employs a conical seat and blunt end piston. Atomics' valve seats are precision machined from an extremely strong aerospace specification seat material. This design combination is the most reliable seat system in the industry and enables the seat to go 2-years or 300 dives without service. Diving performance is superior at even low tank pressure. The Z3 is also freeze protected with a factory sealed first stage that also prevents contamination such as silt and sand from entering the valve mechanism. The regulator is Nitrox ready for mixtures Up to 40% out-of-the-box. The first-Stage has 2 high-pressure (HP) 7/16" and 7 low-pressure (LP) 3/8" ports.

The Z Series second stage is a balanced linear flow design for extremely easy breathing at all depths and dive conditions. The Z Series second stage is built-to-last with a Zirconium plated brass demand valve body, titanium lever and sealing orifice. The diaphragm is made from high quality silicone rubber. This pneumatically-balanced poppet second-stage has Atomics 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 Z series second-stage regulator is equipped with Atomics 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 soft over molded rapid adjustment knob for rare special situations. If you have ever experience the pulling effect" of the regulator second-stage when you turn your head underwater, those days are gone with Atomics all titanium comfort swivel with a black PVD coating. Perhaps one of the most admired features of Atomic second stages is the patented comfort swivel which allows 30° rotational movement without binding or kinking.

The Z3 has a new high-flow second stage case and magnum lever design that significantly lowers breathing effort at any depth from shallow water to beyond the limits. A dual material second stage cover enables entire front to be used for purging and a dual silicone comfort fit mouthpiece with tear resistant bite tabs. The Z3 has a metal accented front cover ring. The regulator comes equipped with a 3/8" threaded 32" (81.3 cm) low-pressure hose. The regulator weighs 2.6 lbs. (1,151 g) and comes with an owner's manual.

This product can only be shipped to U.S. addresses.

Warranty Information

This product has a limited warranty of 24 months.


Atomic Z3 Features

  • Atomic Z3 Swivel Regulator:
  • Atomic Aquatics Most Compact and Economical Regulator System
  • Nitrox Ready for Mixtures Up to 40% Out-of-the-Box
  • 3/8" Threaded 32" (81.3 cm) Low Pressure Hose
  • Weight: 2.6 lbs. (1,151 g)
  • Owner's Manual
  • First-Stage:
  • Chrome Plated Brass and 316-Grade Stainless Steel
  • Balanced Flow-Thru Piston Design
  • Atomics Jet Seat High-Flow Piston
  • Exclusive High-Pressure Piston Seal System is Self-Lubricating
  • Self-Lubricating for Low Friction and Low Maintenance
  • No Sharp Edges: Conical Seat and Blunt-End Piston
  • Precision Machined from an Extremely Strong Aerospace Specification Seat Material
  • Most Reliable Seat System in the Industry
  • Seat System: 2-Years or 300 Dives w/o Service
  • 2 High-Pressure (HP) 7/16" Ports
  • 7 Low-Pressure (LP) 3/8" Ports
  • Second-Stage:
  • Balanced Linear Flow Design
  • Pneumatically-Balanced Poppet Second-Stage
  • Built-to-Last:
    Zirconium Plated Brass Demand Valve Body
    Titanium Lever and Sealing Orifice
  • High Quality Silicone Rubber Diaphragm
  • Atomics Patented Seat Saving Dynamic Orifice
  • Unique Diaphragm Activated Vain Automatically Controls the Flow and Venturi-Effect
  • New High-Flow Second Stage Case & Magnum Lever Design:
    Significantly-Lowers Breathing Effort
  • Optimum Breathing Resistance at All-Depths
  • Soft-Over-Molded Rapid Adjustment Knob for Rare Special Situations
  • Atomics Comfort Swivel: 30° Rotational Movement without Binding or Kinking
  • Comfort Swivel: All-Titanium with Black PVD Coating
  • Dual Material Second Stage Cover for Easier Purging
  • Dual Silicone Comfort Fit Mouthpiece with Tear-Resistant Bite Tabs
  • Metal Accented Front Cover Ring

Atomic Z3 Swivel Regulator Customer Reviews

Reviewed by 2 customers


Great Regulator


This is a great regulator. I love it. The only thing to consider is that if you ever think you might decided to use a high pressure tank (and you probably will) get the DIN valve on the first stage and buy a yoke converter. I switched mine useing a DIN converter kit, which was easy enough, but taking that off and putting a yoke back on requires having the right tools and ideally you don't want to do it too often. However, attaching a yoke converter to a DIN valve is easier. You can put it on and take it off with no tools if you need to. For a few extra dollars I think it's worth haveing the flexibility and convenience.


Great Regulator


Easy to assemble. Has so many ports, too many for us but maybe good to have in the future.


Questions & Answers

Questions about this item:

Shopper  Why Did You Choose This?
York M  Alex
KEVIN C  This is open box that is all meaning never used except display ??? Also environmentally sealed? Im am thinking it is worth the extra money to get it sealed?
KEVIN F  It's a store display model that does not have the box anymore. Never used. Not environmentally sealed. Get environmentally sealed only if you plan on diving icy waters or if you plan on diving very dirty or contaminated waters.
Daniel R  Not worth the extra money if you will be diving warm water. IF you plan to do cold water and warm water then would prefer sealed.
JEFF C  It takes a lot to screw up an Atomic... I'm a professional working MSDT who Dives everyday all year round in Hawaii. It's a great Reg, but if you don't dive as much as I do or even 100 times a year - it's way too much for the average recreational diver. That being said - I have 2 Atomics and I love everything about them.
Randall M  is this regulator ready to go out of the box, or do I need to have it "set up"? Also which Seacure mouthpiece works on this regulator?
JEFF C  This Atomic Reg is NOT ready to use out of the box! As are most! Remember when you buy a 1st stage alone or with a 2nd stage along with it you're still missing 3 important things to dive safety. There's no SPG console(High Pressure) included. There's NO alternate air(Octopus 2nd Stage and there's is NO power inflator hose(Low Pressure!) As a certified diver you should hand all these things and then some. As far as mouthpiece's are concerned that's just a matter of preference - this 2nd stage primary unites with almost all mouthpieces. So that's just a matter of "feel" or "comfort." I'm a working dive professional who does 4-6 repetitive dives a day - sometimes 7 days a week so, I prefer something strong and rigid. That's up to you. This is is a Top of the Line Regulator! I would tell the average recreational scuba diver that it's a bit much for 3-5 dives a month, but if it's quality you want & money you have - this is as good as I think it gets. Maintaining it with care and proper storage is everything! I hope this helped... Dive safe & Dive Smart! Aloha, Jeff
Randall M  Hi Jeff - Yes I understand I need to add my Alt, Inflator and SPG...just wanted to make sure that I don't need to have this rig serviced before using. Definitely always want to dive safe!! Thanks
ONUR B  You would have to connect the hoses. A small adjustable wrench and some silicon lube will get the job done. Never used a Seacure mouthpiece, so I can't comment on that. This is a great product by the way. I have used it in both cold and warm waters for many years and never had an issue.
LAUREN S  Check out the regulator size chart on the Seacure custom mouthpiece website.
RICHARD R  Yes, out of the box and good to go. Great regulator. Not 100% certain, but different mouthpiece should be no problem. Make sure to position vinyl tie wrap correctly. I have great comfort in using the mouthpiece sold as is.......why replace?
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