SvoeMesto Kayfun Prime 22mm RTA

22mm Diameter, Top Fill, High Quality 316L Construction, Mouth to Lung
Made In
RDA Diameter
22mm Ø
Tank Capacity
Tank Features
Rebuildable Coils, Replacement Parts
4.7cm (1.9")
2.2cm (0.9")


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The Kayfun Prime Tank is made in Germany by the engineering minds of SvoeMesto. The Kayfun Prime is a Mouth to Lung style of vaping in an innovative RTA. Top-Filling with an adjustable bottom airflow. The Chamber of the Kayfun is reduced to concentrate the flavour of eliquids and ejuices. The Kayfun Prime features the same favourited airflow adjustment ring and liquid control mechanism in the Kayfun series.

Please Note: Every Kayfun Prime metal tank section features an engraving of a famous city name and emblem. Each city will be featured on a limited number of atomisers and in a celebration of SvoeMesto's roots, the first five will be Russian cities, but all are unique and different.


  • Fully assembled Kayfun Prime with engraved steel tank*
  • Spare Glass tank section
  • Full spares pack
  • User guide


  • Top fill design
  • Borosilicate glass window
  • Liquid control (fully adjustable)
  • PEEK insulators
  • 316L stainless steel
  • 2ml capacity
  • Glass and steel tank included
  • Six step external adjustable air flow from 1mm - 2mm
  • Small chamber size for the best possible flavour
  • Serial number for authentication

Important information about Rebuildable Dripping Atomisers:

This product is designed for experienced users, and for those possessing an ohms reader or multimeter to test their coils on. This device requires a comprehensive understanding of the technicalities of vaping, along with knowledge of electronics and ohms law.

We don’t advise any beginners to start rebuilding coils without speaking to a knowledgeable shop. A rebuildable coil must be tested carefully on an ohms reader before it is used on a device. Not testing this properly may present a safety risk for the user, and no new coils should be used on an electronic vaping device until the coil is known to be safe.

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SvoeMesto Kayfun Prime 22mm RTA
SvoeMesto Kayfun Prime 22mm RTA
22mm Diameter, Top Fill, High Quality 316L Construction, Mouth to Lung

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By Flippin eck from West Yorkshire

Best MTL ever (12 June 2018)

I’ve had my Prime for about a month now. My first thought when I put it together was "this is a bit bloody fiddly", but ten minutes later I'd completely forgotten about that.
It’s taken me a while to get the flavour I wanted out of it, but now, every single vape of this beauty puts a smile on my face.
I was using the Nautilus 2 prior to buying this, which made my Manabush Spiritwalker Chiricahua taste incredible, but that juice (pretty much the only juice I vape) was killing the coil every 4 days. I’ve finally found that a 1.1 ohm 28 gauge Kanthal build, with Muji cotton, at 12 Watts gives me that flavour I’ve been chasing. On top of that, it’s a smooth, quiet, non-gurgling, no dry hits, no leaks whatsoever vape. I’m saving loads of money on coils. I change my cotton every other day.
Vapers, we’ve all been there - always thinking there is something better out there - but for the first time ever, I can’t imagine getting a better vape than this. It vapes exactly how I want it to. If I want to chain vape, I just open up the juice flow, lower the wattage a tiny bit (0.5 of a Watt) and chain vape. Not a dry hit in sight. If I lost this tank, I'd buy another without hesitation, and I’ve finally stopped looking at other vape products.
I also highly recommend finding the Ultem kit for this on eBay (Creme De Vape). It’s the same height, so no loss of flavour, but with a wider bore, so more like 3ml capacity. Looks very sexy, too.

By Champagnenema from Scotland

Best vape (23 April 2018)

Having started on MTL vapes over 4 years ago I progressed to RDTA atomisers then to RDA atomisers and loved it for a long time. However recently the massive clouds and sometimes tight chest started to get to me. Also constantly dripping, filling up and changing batteries was a pain. I decided to go back to MTL vaping as before and what can I say, I’m so glad I chose this one! I have a few pricey vape set ups so wasn’t bothered about the 100£ tag on the Kayfun prime but compared to some of my others this hits them out the park. The flavour is amazing and the quality is insane. Perfect vapor and flavour with 70/30 and a 1.5 28g single.
Honestly, if your thinking about it and want it but are struggling to justify the price just go for it. You won’t regret it. Hopefully this will be my last tank for a while as I’ve never had anything like it.
Happy vaping !!!!

By J Stubbs from South

Isn't really anything better than this! (28 January 2018)

I bought my Primes from another vendor month ago however feel reviewing it here is essential, if you compare all the stats of this RTA it is actually worth £100, looks great, small, best machining I ever saw, perfect airflow, sublime flavour, wicks everytime, never ever leaks even if your a crappy builder.
If your a stock coil vaper who MTL vapes things like the nautilus or K2 then take the leap and buy this as a spool of 27g wire and bag of cotton has lasted me 12 months and still have a few months left of cotton (£8) for over a years worth of coils already justifies the initial (£100) as your saving money instantly, just need a build kit and your set up for life.
I personally won't ever buy another tank again, I've finally found what I need after 5 years of vape searching!

By Dave C from Merseyside

Brilliant Mtl (22 January 2018)

I bought this a few weeks ago from vape club and as usual the delivery was super fast. Ok it's pricey but the machining is superb as is the vape quality. Like the kayfun mini which i own it is really easy to build on. Single coil wrapped to give 1.5ohm is perfect for me. The main bonus of mtl vaping is longer battery life and you go through less juice than sub ohm. If you have the cash to spare then you can't go wrong with this tank, i have been using it since I bought it and have not had a single dry hit just great flavour. Highly recommended.