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HH.357 Long Barrel Hybrid 510 Atomizer

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Product Description


HH.357 Long Barrel Cisco Spec Hybrid 510 Atomizer

The Original 306/510 Hybrid atomizer

Stainless Steel | Matte Black | Cobalt Blue | Deep Green | Deep Red

1.5ohm | 2.0ohm | 2.5ohm | 3.0ohm

Hand assembled in the USA

These are longer than standard length 510 atomizers  (37mm)

All stock 357's are made to VII spec.


These Hybrid 306/510 atomizers are the original creation of Hanna Hadawara (HH) and the first small production atomizer to be hand assembled right here in the USA. Hanna created this modification last November after his disappointment with current atomizer consistency and technology. A "how to" was posted back in March going into all the details on how you could create your own Hybrid 306/510 atomizer. The current process is a vast improvement on the original design and now with the addition of the Cisco Spec 1.5ohm 306 coils this is one remarkable atomizer. Each and every atomizer is hand assembled. The assembly process is very time consuming but the end result is an exceptionally consistent atomizer. After assembly a 50/50 blend of PG/VG is used to fire up each atomizer and adjustments are made if necessary. This meticulous testing practically eliminates the potential for DOA's and provides an extremely consistant atomizer. Each atomizer is metered before and after assembly / testing to ensure consistency. 

Available in Matte Black, Stainless Steel, Cobalt Blue, Deep Red, and Dark Green all with open center posts. These will work on any device with a 510 connector including bottom feed mods.


Generally speaking 1.5ohm HH.357's would be for single 3.7v devices, 2.0ohm and above would be suitable for variable volt/watt devices, including eGo style variable volt/watt batteries ( Twist, Spinner, Revolver, etc) If you have any questions, comments or concerns regarding the performance of your HH atomizer please feel free to use our ticket system and we will respond as soon as possible.


The HH.357 is not designed to be used on any cigarette sized battery ( stick/cigalike) or any standard output eGo Style battery. Neither of these batteries have the ability to output the voltage required without over draining or causing battery stress.



Please follow this user guide carefully for optimum performance.

1. Blow excess primer out only in the direction of airflow (in through battery connector terminal and out through drip tip/mouth piece end)
    Do not rinse or clean out primer. It is needed for proper break in. Primer comsists of 50/50 PG/VG

2. Apply enough liquid ( about 5-7 drops) until a slight gurgle is heard when you take an unpowered draw on the atomizer,  if no gurgle is heard add  1-2 more drops 

3. Vape some short drags to be sure there is enough liquid and to test different draw speeds. Remember the pump works on vacuum, slow / soft drags are not going to create enough vacuum.

4. If you get a bad taste on first drag, add 1-3 drops try again.

5. A bad taste or light flavor/vaper from a drag means the atomizer is ready for 2-3 more drops, depending on liquid used. 2-3 for all VG. 3-4 for VG PG.

6. Continue to vape and top off with juice until flavor starts to intensify (you will know) atomizer will "hiss" after a drag when its ready to top off, or top off when you get poor flavor.

7. When you feel you "know" your atomizer go ahead and vape hard. Please be aware when your atomizer is running dry,  Enjoy!!!



A dirty atomizer can cause poor wicking and restrict the flow of liquid to the coil. Dirty wicking material will hold less juice and increase the potential for leaking.

For longer life clean your atomizers when you feel the performance drops or they are not wicking properly. High VG content, Dark jucies, and juices with high sugar content will need to be cleaned more often.

For cleaning use Ethanol/grain alcohol or vodka and let soak for an hour. Drip clean ethanol/alcohol into the atomizer from the mouth piece end and let it drip out the connector end, this would be the final "flush" before blowing the atomizer out and repeating steps 2-5.  Step 2 would require 7-9 drops after a cleaning and blow out.

Do not let the atomizer dry out after cleaning, it needs to stay lubricated. Drop the required amount of drips of your juice or straight pg/vg for pre priming immediately after blowing it out even if you wont be using for a while. Never store the atomizer dry.

Do not blow air in from the drip tip / mouth piece end, EVER. Blow air only in the direction of airflow. In through the connector end and out through drip tip/mouth piece end.

Do not dry burn for any reason, any remaining vodka inside the atomizer will burn off after the first few pulls.

Warranty Information

The HH.357 Atomizer is an experienced user product. These atomizers carry NO warranty and NO refunds. Each atomizer is metered and tested for functionality by Hanna. Atomizers are metered again before shipping, therefore NO DOA claims will not be accepted. If you do not understand how to us these high performance atomizers please no not purchase them, all sales are final. These atomizers are not designed to be run on standard (cigarette sized) batteries and have been known to damage or significantly reduce the lifespan of eGo style batteries.

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Product Reviews

Showing reviews 1-10 of 121 | Next

  1. Biggest waste of money 1 Star Review

    Posted by on 28th Jan 2015

    Worked great for the first couple days after that the taste just went away. Tries cleaning it and still the same

  2. Hh357 long barrel 5 Star Review

    Posted by on 1st Aug 2014

    New to dripping, so far soooo good!!!!! Worth the investment

  3. Cant go wrong 5 Star Review

    Posted by on 3rd Jun 2014

    There great for us multi-flavor vapors like me! I jump from dripping one flavor to an other by the hour and the 357 has not failed me yet. Its everything its said to be. Thanks Avid

  4. Fantastic for its purpose 4 Star Review

    Posted by on 23rd May 2014

    I bought two HH.357's for tasting purposes after seeing multiple YouTube reviews extolling their virtues, in particular the ease of cleaning and changing liquids. I sample a LOT of different flavors, and these have been exactly what I was looking for. The flavor and vapor production is fantastic, and the cleaning/changing is so simple even my knuckle-dragging self can do it while distracted. It has both enhanced my sampling experience through the enhanced flavors dripping provides and made it more efficient. Completely worth the cost!

  5. Best Vape 5 Star Review

    Posted by on 2nd May 2014

    This has given me the best vaping experience.

  6. Outstanding 5 Star Review

    Posted by on 24th Apr 2014

    one good atomizer, easy to use, no fuss, no mess.

  7. Simply the best 5 Star Review

    Posted by on 18th Apr 2014

    Nothing on the market producies better flavor or vapor. In the time I've used it (just over a week) this atty has become my favorite go to for tasting new juices. Loved it so much I had to order a second

  8. Vape the BEST, Forget the rest!!! 5 Star Review

    Posted by on 30th Mar 2014

    HH.357 - 1.5ohm - ProVari @ 3.7V
    What else can be said that hasn't already been stated? These HH.357's are without a doubt the pinnacle of perfection! If you are looking to enjoy the very best dripping experience EVER, look no further! I have always been a tank guy (Kayfun Lite + and Russian 91%) and thought I had found the best way to experience a good vape... But nothing, and I do mean nothing even comes close to this atty... I have been using one for a little over a month and have had ZERO issues.. Smooth draw, unbelievable vapor, and the flavor... OMG... You will notice flavors in your favorite juice that you never knew existed! As the saying goes, "You get what you pay for"...

  9. Very good! 4 Star Review

    Posted by on 13th Mar 2014

    I love it, the heat and taste is very good, and it holds a lot, then again I like to flood my altys. For the money though I may have to stay with the Cisco 306s, just for my taste and feel but it is very close.

  10. Nice dripper 4 Star Review

    Posted by on 12th Mar 2014

    I am not a dripper and only bought this atty because of the recommendations that it gives great flavor. I understand why they cost so much, but I don't use it enough to make it worth the cost. If you are an all day dripper, this is a great atty. It really does give great flavor!

Showing reviews 1-10 of 121 | Next

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