Zephyrus Sub Ohm Tank Review

UD Zephyrus
UD Zephyrus

Zephyrus Intro

In this article we take a look at the highly anticipated Zephyrus sub ohm tank by UD. The Zephyrus sub ohm tank features a fantastic RBA section, as well as replaceable dual coil horizontal heads.

The Zephyrus is made the by the vaping company Youde (UD) famous for their range of quality RTAs and RDAs. The Goliath and Goblin RTA have been big hits and it is no wonder they have created a sub ohm tank with a fantastic RBA deck.

The Zephyrus comes with a pre-installed 0.3ohm coil and a fantastic looking RBA deck, as well as different colored o-rings and a spare pyrex glass.


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Zephyrus Specs and Features

UD Zephyrus Package Content
UD Zephyrus Package Content
  • 1 UD Zephyrus Sub-Ohm Tank
  • 1 Shorty Widebore Drip Tip
  • 1 510 Heat Sink Adapter
  • 1 Preinstalled 0.3 ohm Coil Optimized for 20 to 50 Watts
  • 1 RBA 4 Post Deck
  • 1 Set of Red and Blue Seal Rings
  • Additional RBA screw and O-Ring
  • Price: $29.99
  • Wattage Range: 20-45W (0.2ohm coil) 20-50W (0.3ohm coil) 20-50W (0.5ohm coil)
  • Tank Capacity: 5ml
  • Coils Available: 0.2, 0.3 and 0.5ohm (0.3 comes with the kit)
  • Wicking material: 100% Organic Koh Gen Do Japanese Cotton
  • RBA: RBA deck included in the kit
  • Diameter: 22mm

Notable Remarks

Vaping the 0.3ohm pre-installed coil: Recommended wattage 20-50W)

We used our IPV4 box mod and our Miss Samoa e-juice by Fa-Q for this review.

  • 15W: Already pretty ok vapor and a warmish vape. Very impressed at this low wattage. Flavor isn’t quite there though.
  • 20W: Slightly warmer now and a bit more flavor. Clouds again pretty good.
  • 30W: Better flavor and warmer vapor. Flavor is pretty good, but still isn’t quite there yet.
  • 40W: The flavor seems to be coming out really nicely now at 40W for me. It a nice warm vape without being too hot on shorter inhales. On longer inhales it is starting to get quite warm! I would vape this tank on this coil around 40W.
  • 50W: Billowing clouds of warm vapor. The tank gets hot quite quickly around 50W even with the heat sink, but the coil seems to wick quite well. It is slightly too warm for me at this wattage. The flavor is good to great, but not quite up there with the coils on the Herakles, Crown and Freemax Starre in my opinion.

Using the Zephyrus RBA Deck

UD Zephyrus RDA Deck
UD Zephyrus RDA Deck

So it comes as no surprise that Youde have created a really impressive RBA deck for the Zephyrus. The Zephyrus RBA is a 4 post deck, which makes doing builds a lot easier and has plenty of air flow (more so than the Goblin RTA). The RBA deck is by far and away the best RBA deck out there for any sub ohm tank with the option of replaceable coils. The deck isn’t the biggest when you compare it to RDAs, but it does a really good job. Some vapers have even managed Clapton, Nano Quad and Macro builds. I personally found the deck a little fiddly and found trying to get the wicking right slightly tricky, but I am not very experienced when it comes to more complicated builds. Once you do master a good build on this RBA deck, you get tonnes of flavor with lovely plumes of vapor!

The flavor for me on the RBA deck was far superior to that of the pre-installed coil.


Good Juice Capacity

The Zephyrus comes with a 5ml juice capacity. We used our medical syringe and managed to get the full 5ml into the tank. This is a good amount as you will be getting through e-liquid very quickly!

RBA Deck

I think the 4 post RBA deck is the Zephyrus’ key selling point and this tank will appeal to a lot of drippers who are looking for a sub ohm tank that has both a RBA and replaceable coils. The RBA section is by far the best on any sub ohm clearomizer so far, that also features replaceable coil heads. It isn’t the easiest RBA section to use and I would not recommend it for beginners!

Low Wattage Vaping on the 0.2 and 0.3ohm Heads

UD Zephyrus 0.3 Coil vs Atlantis 0.5 Coil
UD Zephyrus 0.3 Coil vs Atlantis 0.5 Coil

The 0.3ohm coil head we tried was a dual horizontal coil. It vaped surprisingly well at around 20W, which means if you want to save battery life that you can go down to lower wattage and have an enjoyable vape. Having said that, we enjoyed the flavor most around the 30-40W mark. We didn’t get to try the 0.2ohm coil and I assume this will work even better at lower wattages.

Stunning Looks

I think the Zephyrus tank itself looks really stunning. It is my favourite looking sub ohm tank so far. It also comes with different colored o-rings (red & blue) if you should want to change the color.

Good Wide Airflow

UD Zephyrus
UD Zephyrus

The airflow on the Zephyrus, is very wide and features two wide air flow holes which can be fully adjusted and closed. The airflow, despite being quite wide, is slightly more restrictive than something like the Atlantis 2. It is comparable to the air flow on the Arctic.

Good Selection of Coils

The Zephyrus has a selection of 3 coil heads: 0.2, 0.3 and 0.5ohm. We only got to try the 0.3ohm head, but it worked well and was impressive at lower wattages. I’d be very interested to see how the 0.5 and 0.2ohm coils fare. If you have tried them, do let us know your thoughts below.

Good Flavor and Great Clouds

The clouds on the pre-made coil heads were fantastic. Even at 20W the 0.3ohm coil was spewing out nice billowing clouds of vapor. The flavor on the 0.3ohm head was, for me, best around 40-50W. It was a nice flavor and probably comparable to the Atlantis 2. I don’t however; think it was quite as good as the Crown, Freemax Starre and Herakles.

The flavor for me was a lot better on the RBA deck and if I were to use this tank going forward that is how I would use it.

Top Filling Function

I mention this feature last, as I like the concept of it. However, when using the top-filling function I found the tank leaked uncontrollably from the bottom after re-filling the tank. It is a good idea, but I don’t think the execution was quite right.

Zephyrus Comes Fully Apart

The Zephyrus sub ohm tank comes fully apart. You can even take off the airflow ring and get in and clean all parts of the tank, which is good.

Drip Tip with Added Heatsink

The drip tip can be used in two ways. First with the standard drip tip or secondly, you can use the drip tip together with the provided heat sink. The heat sink keeps the drip tip cooler at higher wattages and I preferred to vape with it attached. I found the single drip tip on its own slightly too low for my liking.



This was the major down side to this tank and was something that really annoyed us. The leaking always seemed to happen through the bottom. It was worst after using the top filling function, despite closing off the air flow, so I just stopped using the top fill and that seemed to help. The leaking was almost a deal breaker for me, as I constantly had to have the kitchen towels out, just in case the tank started leaking again. Other vapers seem to have the same issue as well. One vaper mentions closing the airflow holes completely when using the top fill function, which we did as well, but upon opening the air flow holes to vape, the leaking would start again.

This is the only thing that we didn’t like about this tank and unfortunately it was almost a deal breaker.


This tank has so many things going for it and the RBA deck is absolutely fantastic. The standard coil heads are also quite good and provided good flavor and great clouds even at lower wattages. There were a good amount of accessories included in the kit, including the different colored o-rings, the spare pyrex glass and the heatsink for the drip tip. These were nice little inclusions in a fantastic kit.

I wouldn’t recommend this tank for those purchasing their first sub ohm tank, as I think this tank is much more geared towards those who like to make their own coils, but want the convenience of having replaceable coil heads, should they want to use them.

Drippers and users of RDAs will therefore love this tank, as it provides you with a good little build deck with plenty of airflow and juice holes, as well as the option of putting in a regular coil head.

The one big downside we had with the Zephyrus was the leaking, but it didn’t happen all the time. It had the tendency to happen when we least wanted it to happen! Do bear this in mind when deciding to purchase this sub ohm tank and hopefully yours won’t do the same.

We hope you enjoyed our Zephyrus sub ohm tank review and if you have any questions drop us a comment below.


Check out this product via the button below

Save 10% below using the coupon code: V360

*Some discounts are dependent on your geographical location.
Chris Kendell
Chris Kendell is the co-founder of Vaping360. He started the website with his brother and co-founder Alex in 2014, after Alex introduced him to vaping. Chris was immediately won over by the revolutionary and potentially lifesaving impacts that vaping can have on our society. In his minuscule spare time, you can find Chris travelling and exploring new places from his base in Germany, eating delicious food and enjoying a range of different sports.
  • Joe Kenoyer

    The rba is very touchy to build right. Too much cotton and you get dry hits, too little and it leaks. The sweet spot to avoid dry hits or leaking is small. Here’s what I’ve done to avoid both. Thread your cotton, cut it a little longer than the base, try putting the top on, and trim the cotton until it fits without getting into the threads. Take a needle and make sure the fill holes are clear of cotton. Close the vent when you fill. Hope this helps someone.

    • Wow thanks for the heads up. Not only will that help other, it will also help me, lol. Had massive problems trying to get a perfect fit for the RBA to work. About 20 coils later I had the perfect set-up. Thanks Joe! Vape on!

      • Louie Gutierrez

        I found that the key to wicking is to get lots of cotton in the coils, to avoid dry hitting, and then cut them strait down flush with the side post. You want the bottom of the cotton touching the juice holes but not extending in to them. And definitely close the air flow ring when filling. Also, make sure that you don’t cover the entire fill hole so that the air can escape.

  • Faris Latiff

    Hey there, it’s a great review. Thinking to get this tank soon, but can I use nickel wire on this tank?

    • Thanks! Yes you can use nickel wire on the RBA section, alongside a temp control box mod.

  • Nathaniel Alan Jaeger

    I have this tank on my IPV3. Its a good tank if done rite. The shop I got it from actually flattened the coils slightly by wraping it around 2 small screwdrivers at the same time. The cotton was cut diagonally as well

  • James A.

    Did it leak using the stock coil?

    • Yes it did. It is a bit fiddly, but we finally managed to stop the leaking.

      • James A.

        thanks for the prompt feedback. maybe i’ll pass over this, this time.

  • Matt

    Is this tank safe to use with the kanger subox?

  • Rene Fourie

    I received the tank second hand, the coils was messed up already so was stuck with the RBA deck only. The build was much easier than the Goblin, or Cthulhu (of which has the same deck, so I am excluding Subtank and Lemo types) – and I use MaxVG liquid only due to an allergy to PG, so the wicking is more complicated to let the thicker juice come through, so that it does not have dry hits, or leaks.

    However the reason I post here is this – you say you have leaks the whole time, but with the replaceable coils. I am wondering if someone can confirm a similar find with the RBA deck – because to be honest from day one I have not yet had a drop go to waste. Zero leaks.

    Absolutely love this tank. It is kinda rough, not as smooth on the vape as the Billow but that is probably because mine is on 0.28 ohm right now, past 3.5V it becomes too hot.

    I’ve even done a quad vertical coil in here. Really amazing tank.

    • Thanks for the great info Rene. I should have been more specific in the review. The leaking was purely down to the replaceable coils and the RBA deck as you mentioned doesn’t leak. Great looking quad vertical coil you have there!

      • Rene Fourie

        I hope someone here who has done the RBA deck can confirm. But thanks for this, I was thinking of getting some coils, always nice to know what the benchmark of your builds are supposed to be in tanks like these where you have a choice of coil or RBA. Your review tells me I must save my bucks! And they come off as very expensive, so thank you for that!

        Thanks for the compliment. I just wished it worked better. I was expecting better airflow, but to the contrary it was so bad, also had more dry hits than a jellyfish in a sandstorm.

        The best to me in this tank remains 28g 2mm i/d 5.5 wraps. Heats up quick, cools down quick.

    • Molly Scott

      I love my Zephyrus RBA tank, but I have struggled to find a good balance for both the coils and cotton. I’m interested to know how you threaded the cotton through the 4 coil build? Do you use the 4 coil regularly? I’m also looking for a good temp control mod, as my eleaf 50W istick has quit on me. Is the Joyetech eVic mini 60W box mod compatible with the Zephyrus tank?

      • Rene Fourie

        With HUGE amounts of patience. But to be honest it was a rubbish vape.

        Oh I see your question now. No when building like that the wick does not go through the coil, it goes around the coil. Meaning the air goes straight through the coil.

        Seriously, try 24g 2.5mm i/d and squeeze as many wraps in as you can. It gets hot, but because of the surface area you don’t need so much heat to provide huge plumes of flavour.

        I should be getting my V2 today. So excited :-)))

        On the mod… The eVic Mini is very cool, but there are many many new devices out now, and I don’t think there is any of them out there that is really bad any more. Everyone has had there bad experience with a particular brand. Personally I hate temp control so almost all mods are perfect for me. but yes, I doubt you would do a build above 60w on the Zeph, so if it is a good price do it.

    • That is a sweet build, mate! Inspiration for my deck.

      • Rene Fourie

        Shot thanks @FilthyPazuzu:disqus

        Have you checked that guy on Youtube with his Zeph? 30g Ni200 dual coil 13 wraps around 2.5mm.

        Man he was like a fog machine. Now THAT is inspiration for a build. Checkit:

  • Mike Andrews

    you guys are morons. when filling the zephyrus, CLOSE THE AIR ADJUSTER SLIDE.

    • We did close them off when filling Mike. But once we opened it again to start vaping, the leaks would start.

      • Mike Andrews

        Perhaps you have a bad unit. Any top fill rta I’ve used (and I’ve used a LOT) has not leaked so long as you close down the airflow collar and if needed put your finger over the drip tip. Vacuum action (might not be the word I’m looking for) will keep it from leaking out the bottom.

        • Could well be a bad unit. I know what you mean with the Vacuum and that does tend to work, but on our Zephyrus it didn’t. Ours had a mind of its own and was just leaking whenever it felt like it! Glad yours didn’t leak though.

      • Dik Az

        its only the way how u wick the tank lol!…

  • Douglas

    Mine leaks just a bit under the tank just on the mod…I notice it when I remove the tank..I close off air holes when filling but it just develops over time I think

  • Sean-atorPH

    Based on my numerous rebuilding of this Zephy sub tank RBA, i have resolved this leaking issue.

    Its the proper way of installing the cotton.

    The RBA has 4-inlet holes where the juice sinks-in, those holes should have some thin cotton strands, as restriction, so that the juice would not flow freely inside the RBA then out to the airholes or even to the shaft in-contact with your mod (as some would try to shut the airholes).

    Hope this is useful to my co-vapers!

  • I know this is late, but I’ve had V2’s for ages. It’s rare, but they still occasionally leak – whether using the deck or pre-built coils. I think there’s one easily overlooked cause: improperly sealing the o-rings holding the glass in place during reassembly.
    Proper seals have three rings against the glass sealing 2 bands of air between them, ALL perfectly horizontal and evenly situated with no distortion at all.
    If they’re slightly off, just gently rotate the glass back and forth while squeezing the top and bottom of the tank together using slight pressure. Applying a little e-liquid to the o-rings when reassembling the tank can make the whole process easier.
    After two years this is still my favorite tank. I have three. It helps they often release new coil varieties. The rebuildable ceramic ones are particularly good. I love my RDA’s, but for traveling no tank has yet made me happier than my Zephys!