Atomic Z3 Regulator with Sealed 1st Stage 03-0090-6P 033501

Mfg Part #: 03-0090-6P

Customer Reviews for Atomic Z3 Regulator with Sealed 1st Stage:

See the top 20 most helpful scuba gear reviews

Average Customer Review: based on 2 reviews.

Rating: Atomic Z3 Regulator with Sealed 1st Stage Review - Scuba Gear Customer Reviews
Reviewer: Peter T.
Fifteen dives on the East side of Grand Cayman last week and I could not be happier with the Atomic Z3. Like most, I did a bunch of research before deciding and I am very pleased with the choice. The airflow was excellent at all depths (in fact, I turned it down - it was too easy to breath!). Great product.

Did this Review help?

12 out of 13 people found this review helpful.

Rating: Atomic Z3 Reg w/ 1st Stage
Reviewer: Philip B.  -  View all my reviews
This is a very well manufactured regulator. I have just logged 20 dives on this since I received it a couple weeks ago. This REG is very easy and effortless to breath. The first stage does have a unique way that the lines connect to, but it does not cause any discomfort or problems whatsoever. I would strongly recommend to a friend.

Did this Review help?

46 out of 82 people found this review helpful.

Questions and Answers for Atomic Z3 Regulator with Sealed 1st Stage:

  • Rich:

    Hi. The 2014 Z3 has a "sealed first stage". Ive searched on Atomics website and they do not explain this feature and its benefits. In contrast, the B2 ($150 more) and the 2013 Z3 ($40 less) do not have a sealed first stages. Can you help me understand the sealed first stage? Thank you, Rich

    Darrick  (Certified Scuba Instructor at

    Hello Rich, here is what a sealed first stage does. The first stage to surround it with silicone oil or other non-freezing fluid. The chamber has a diaphragm or piston that transmits water pressure to the oil, so the first stage does its job with minimal freeze risk. An added benefit in normal diving is that the first stage never gets salt water or fresh water inside, minimizing maintenance concerns.

  • Vincent:

    How many HP and LP ports come with this unit?

    Darrick  (Certified Scuba Instructor at

    Hello Vincent, this will have 2 High Pressure ports and 5 Low Pressure ports.

  • Audrey:

    Hello, what are the weight differences between the T1, B2, and Z3 regulators?

    Darrick  (Certified Scuba Instructor at

    Hello Audrey, the weight of these regulators are as follows: T1-3lbs, Z3-3lbs, B2-4lbs.

  • David:

    Following up on Richs question, if one has never had a problem with debris in the first stage and never dives cold water, would there be any downsides to having a sealed first stage?

    Arthur  (Certified Scuba Instructor at

    The only downside is that it costs about $30 more to service it.

  • Gene:

    If I order by Monday can you overnight an item to arrive on Tuesday?

    Bob  (Certified Scuba Instructor at

    If an item is in stock it can be shipped in any method the purchaser wishes to pay for. It is always recommended to contact our instructors at to check product availability first.

  • Shivantha:

    Hi, Im about to place my order for the Z3 plus the Z2 Octo, however there is no indication whether you supply it with a DIN or YOKE first stage ? I need a YOKE. Also I this currently in stock ?

    Bob  (Certified Scuba Instructor at

    All regulators are YOKE regulators unless specifically stated as DIN. We have a separate category for DIN regulators.

  • Shivantha:

    Hi there, Im looking at replacing my existing Mares regulator. Can I get some pros and cons when comparing the Atomic Z3 Vs. the Mares Carbon 52. Rds, Shivantha.

    Darrick  (Certified Scuba Instructor at

    Hello Shivantha, there are no con's when it comes to the Atomic Z3. It is by far a better regulator. It's a lighter weight regulator. Has a diver adjustable dial-a-breath where you can fine tune your breathing when you are below the water where as the Mares regulator does not have this. The service on the Z3 is 2 years or 200 dives where as the Mares is 1 year or 100 dives. So over the life of the regulator the savings you will save in the up-keep of the Z3 will pay for itself.

The Best Regulators Ever Designed

How materials and passion come together for perfect dives
At Atomic we sometimes feel like a symphony conductor – bringing together exotic materials, groundbreaking design, and superior manufacturing in perfect harmony. The result is our signature line of regulators that are widely considered the finest ever designed by independent reviewers and passionate divers across the globe. So how do we do it? There are no real secrets here...we are an open book and want you to see for yourself why Atomic regulators are the finest ever to submerge. No other company has the courage or determination to put all these elements together as we have. Take a look...

“Compromise” Is A Word We Don’t Know
Titanium is uncompromising...and nobody uses it like Atomic
There is simply no better material for the ocean environment than Titanium. A Titanium regulator part could actually survive beneath the sea for centuries without a trace of corrosion. Atomic heavily invested in the people, machinery and time needed to develop new fabrication techniques at our own USA R&D facilities. If you see other companies claiming “Titanium” regulators, closely investigate. They do not employ these materials as thoroughly or effectively as Atomic Aquatics. You will see on the following pages exactly which parts in every Atomic regulator are machined from Titanium and why they excel.

Atomic wins the regulator trifecta:
natural performance – low maintenance – stunning appearance

The ultimate test of any regulator is how it breathes. Atomic Aquatics designed “natural breathing” into every regulator model, regardless of materials or price. Just because we design a regulator using different materials to achieve a lower price-point, does not mean we compromise on performance. Every review or independent test an Atomic regulator has been involved in has concluded with a top ranking. Superior performance is inherent in every Atomic model at any dive depth or breathing rate. Our use of corrosion-resistant materials also results in much lower maintenance requirements for divers. We stand behind this claim with our 2-Year/300 Dive Warranty (see details on pages 10-11). Finally, beautiful appearance is an Atomic imperative. Every time you pull your Atomic reg from its bag, you will be proud of its technologically-superb appearance...and other divers may take an envious glance. Our plating processes and machine-turned finishes produce an immediately recognizable distinction.

View all Atomic Regulators

Choose Currency:, 1752 Langley Avenue, Irvine CA 92614