Yun 25mm RDA by EHPRO


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The Yun (Cloud) RDA by EHPRO is a 25mm rebuildable dripping atomizer that features a monsterous 2 Post Velocity Style deck with 2.8mm post holes to accommodate any build you want to challenge it with. Large parallel cyclops airflow holes that directly hit the bottom of your coils reside on both sides of the deck to provide generous amounts of airflow and can be adjusted by turning the top cap. A unique feature the Yun possesses is the ability to interchange the center post with three different types of center posts for auxiliary airflow. The three variations of center posts have double o-rings that can simply be pushed into or pulled out of the center post slot and include no airflow, small horizontal airflow, or large veritcal airflow.


  • 25mm Diameter
  • Superior Stainless Steel Construction
  • 2 Post Velocity Style Deck
    • 20.2mm Diameter Build Deck
    • 2.8mm Post Holes
    • PEEK Insulator
    • 5.5mm Deep Juice Well
    • Interchangeable Center Airflow Post
      • Double O-Ring Center Posts For Easy Interchangeability
      • 3 Center Airflow Post Variations
        • No Airflow Hole
        • Small Horizontal Airflow Hole (1.5mm by 3.5mm)
        • Large Vertical Airflow Hole (2.5mm by 4mm)
    • Elevated Dual Parallel Cyclops Airflow Holes
      • Each Airflow Hole is 1.8mm by 5.6mm
  • Adjustable Airflow Control
    • 2.5mm by 12mm Slots
  • Widebore Delrin Drip Tip
  • Flush 510 Drip Tip Adaptor
  • Copper 510 Pin



1x Yun RDA by EHPRO

3x Center Airflow Posts

1x Bag of Extra O-Rings, Screws, and Center Post O-Rings

1x 510 Drip Tip Adaptor

1x Hex Tool 

Warning: This product is for advanced users only and proper precautions/handling should always be used. Never use any atomizer on a hybrid mod with a 510 connection that is flush or shorter than the 510 threading of the atomizer to avoid any possible injuries.
Disclaimer: Please use extreme caution when working with Li-Ion (Lithium-Ion), LiPo (Lithium-Ion Polymer) and any other rechargeable batteries. The user should have fundamental knowledge of batteries and battery safety before using these types of batteries to avoid injury. Always charge in/on a fire-proof surface. Never leave charging batteries unattended. Do not use any rechargeable battery as well as any battery charger if any visible damage is present, as well as if the cell or charger has been stressed through mishandling or accidental causes even if damage may not be visible. Always store and transport rechargeable cells in a safe, non-conductive container in a controlled environment. Dispose of all battery cells and chargers in accordance to local laws and mandates. Eciggity will not be held responsible for any damage or injury caused by misuse or mishandling of Li-Ion, LiPo and any other rechargeable batteries.

16 Reviews Hide Reviews Show Reviews

  • 1
    Thank goodness it was cheap

    Posted by Sandy Prater on Jul 15, 2021

    An absolute waste of money. First of all, the screws and threading were awful. Grind-y on all and one actually had the threading stripped. I had to basically insert at an angle to get it to catch. Even if I'd liked the way this vape, I don't know if I could build it again b/c of the threading issue. Luckily, that won't be a problem. The flavor wasn't terrible, though I had to cut down the massive amounts of airflow to taste anything. However, despite many pulls, I couldn't get the taste of cotton to go away and vaping it side-by-side with the same coils, same cotton, same resistance and power as another RDA that came in this shipment really highlighted the weakness and overall mediocre performance of the Yun. After my little experiment, I just tossed it in the trash. Trust me, don't waste your money.

  • 4
    yun 25mm

    Posted by Unknown on Dec 22, 2020

    Awsome forgot about rda

  • 4
    Great quality

    Posted by Robyn on Nov 10, 2020

    I can not believe the quality of this RDA for the price! If you’re using a regulated mod (non squonker) trust me, pick one up! What have you got to loose? This is kind of an odd review, I wasn’t able to actually use mine. I only have squonk mods and hybrid mechs. This does not include a squonk pin and the 510 pin does not protrude enough for a hybrid mech. I should have paid more attention to the description, entirely my fault. I have a collection of over 70 RDA’s and I can still tell you this machining and build is quality! Eciggity came through flawlessly once again! Sent what I ordered and fast. Excellent site! I highly, highly recommended them!

  • 5
    Underrated and mostly unknown

    Posted by Charles Seale on May 14, 2020

    Until I noticed this on Eciggity’s website for $4.00, I had never heard of the Yun 25mm. I bought it on impulse because the price was right. This is an old RDA (2016), and I love picking up retro hardware. When it arrived, I immediately realized that if you leave the center airflow closed off, you would have true Kennedy style airflow. I threw a build in it, and was quite impressed with the flavor and cloud production (even with the closed center post). So then I did the next logical thing. I got out my Kennedy 25mm and put the exact same build in it and used the same e-liquid. Granted, the Kennedy did have better flavor, but the Yun wasn’t too far off. It really is a good RDA. I also tried the two other center airflow posts that increased the airflow - you get bigger clouds, but the flavor suffers greatly (just leave those two in the box). I should also mention that there is no Squonk pin, but you can’t fault them for that as squonking wasn’t really a thing in 2016. This is a big dripper and can handle some pretty beefy coils. If you’re looking for a big, beefy, throwback RDA that delivers flavors and big clouds on the cheap, you should grab one of these while they last!

  • 4
    nice for the $

    Posted by Stan on Apr 20, 2019

    Very nice lots of flavor for a 25mm,tons of airflow options

  • 5
    outstanding value!

    Posted by Nestor Garcia on Apr 11, 2018

    This is a great deal! The atty came well packaged and with all the needed accessories. Easy deck to build on, clean fit and finish. This things pumps out some heavy vapor! I love this one! And for the price you can't go wrong.

  • 5
    Nice quality tank and great service at a bettet price.

    Posted by George on Mar 16, 2018

    Wow, i was pretty happy with r The preformance of this four dollar rda. You dont need to spend a hundred to get a good vape

  • 5

    Posted by Daid on Feb 24, 2018

    This has been my go-to atty for testing flavors. I can't believe that a cloud chasing dripper can produce such flavor! And I can't believe it was originally under $20. There are units half as good selling for three times the price. To see this on clearance t under $5 feels like stealing.

  • 5
    Great RDA

    Posted by Dan on Feb 14, 2018

    Great airflow build deck. Easy to build on. Great quality and service from Eciggity!

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