SvoëMesto - "Kayfun 5² (K25) SE (Special Edition), Stainless" RTA



The Kayfun 5² (K25) SE Stainless RTA by SvoëMesto

The SvoëMesto Kayfun 5² (K25) is the high performance atomizer of the Kayfun series, combining simplicity, functionality, and outstanding flavour performance.

A fully adjustable liquid control system gives you complete adjustability of your liquid flow. Thanks to SvoëMesto's pressure based feeding system, fine tuning of the liquid flow is not required with the majority of setups. After closing the liquid cocntrol, the Kayfun 5² can easily be filled through the top within a few seconds. Just as simple as filling it, is accessing your coil by removing the tank, regardless if it is filled or not. 

The build deck has been enlarged to fit complex wire builds such as Clapton coils, Fused Clapton coils, and more quite easily. 

The adjustable airflow has also been increased to a maximum of 4mm, providing even more air flow for high performance builds.

The air flow control can be adjusted externally and has 3 positions:

  • 3mm
  • 3.5mm
  • 4mm

The internal design of the evaporation chamber has been optimized to create an outstanding flavour profile that Kayfun fans have grown to love, even at higher airflow settings.

As with previous models, the Kayfun 5² only utilizes the highest grade materials. Thanks to its intelligent design, cleaning and maintenance can be done by disassembling the atomizer into no more than five pieces, no tools required.

Its functionality, intuitive handling, and rich flavour profile combined with great performance capabilities makes the Kayfun 5² a true daily driver.

What's NEW With This "SE" Version of the Kayfun 5²?

  • Engraved tank shield with PSU window
  • Increased tank volume
  • 810 top cap with PSU drip tip

What is PSU?

PSU (polysulfones) are a family of high performance thermoplastics. These polymers are known for their toughness and stability at high temperatures. They are widely used for medical applications. Further qualities are:

  • Temperature resistance
  • Chemical resistance
  • Durability
  • Biocompatible
  • Physiologically inert

Technical features:

  • Anti-heat 810 PSU drip tip
  • Top fill
  • PSU window
  • Liquid control (fully adjustable)
  • Enlarged build deck for easier building
  • M4 build screws
  • PEEK isolators
  • Increased maximum liquid flow
  • External air flow control
  • Increased maximum air flow
  • 316L Stainless steel
  • 510 connector
  • Serial number for authentication
  • Easy assembly and maintenancce


  • Diameter: 25mm
  • Height: 62.5mm (without drip tip)
  • Tank capacity: 7mL

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