Shuriken RDA by Cthulhu Mod

Time for another hardware review! This is an RDA from Cthulhu – the Shuriken RDA.

“From the makers of the Cthulhu RTA, the Hastur RDA and the Hastur RDTA comes the Shuriken RDA.”

Featuring a patented dual-post deck with massive post holes (2.5mm x 2.8mm), the Cthulhu Mod Shuriken RDA makes building a breeze. With this RDA, you will easily be able to fit massive clapton coils (or whatever you choose) for great flavour and great clouds.


  • WIDTH: 22mm / 0.87 in
  • HEIGHT: 31.6mm / 1.24 in (with drip tip)
  • DEPTH of Juice Well: 6.52 mm / 0.26 in
  • Supports dual coil and single coil
  • Anti-snip design.

The packaging is a small, plastic box with a foam insert holding the RDA, the 510 adapter and the second airflow ring. On top of the RDA, you’ll find spare O-rings and an Allen key enclosed in separate packaging.

On first look at the RDA, you can see that it’s a very simple design with a plastic, wide bore drip-tip (just like the Hastur RDA). Cthulhu has kept it simple with nothing too fancy in the aesthetic design.

Now let’s have a deeper look.

Taking the cap off this RDA, the top cap feels very lightweight and almost flimsy as the metal is thin – but this will not affect the performance of the RDA. Looking at the deck, however, is where this gets unique. The build deck is a patented design, with one screw in the middle. I actually like this design as it grants enough room for bigger coils and makes for a pleasant building experience.

There are 2 different air-flow options on the RDA. It comes with 2 rings that slot over the top cap to provide either full or restrictive air-flow options. I prefer the lesser of the two, as it is just perfect for my style of vaping. This can also be set in a single-coil configuration.

Now to the performance.

The flavour from this RDA is exceptional as it has the smaller airflow option which is definitely
catered towards flavour-chasers. It gives off a very nice flavour but does not compromise on clouds too much. The stronger point of the two is definitely in favour of the cloud chasers, as I found the flavour is slightly muted with this installed.


  • Posts are a joy to work on
  • Deep juice well
  • Delrin top cap
  • 510 driptip adapter included
  • Two airflow rings included for added configuration options
  • Both dual and single coil


  • Airflow holes should be able to facilitate less than 4 holes on both sides
  • Top cap sometimes loosens itself – making the airflow ring spin
  • O-rings could be slightly thicker

Now for the big question would I buy this again?

Unfortunately, I’m going to have to say no – although this is just a personal opinion due to the quality of the build. I find it slightly too flimsy for my own preference. This won’t be the same for everyone’s opinion, and I can safely say that if you can look past that then this is a very well-performing RDA and for the cheap price of only £27.00 + postage, this will certainly fit into most budgets.