my new favourite been using kanger dual coils for last couple of years but these produce more flavour they are a must try if your like me i could not take to subohm vapeing i am a ex smoker who likes lung hits not just blowing out clouds of sub ohm over cooked crap. these give a nice smooth vape .

My friend has several T18 tanks and loves them - but the coils do let them down.
If you open the coil package - have a look to make sure there is cotton filling every hole in the housing. If all the holes have cotton filling them - they will be fine.
If it doesnt it will leak. You can get round this by using a cocktail stick, needle or similar and just pulling the cotton to fill all the holes. Tonight I have also tried putting some extra cotton in to see if this helps - awaiting her to test them.
She has written to Innokin and they told her a similar method - so basically admitting a lot of coils have this fault - she has bought many from Fasttech and other UK stores (so not just Fasttech!) - all genuine Innokin and many showing the same problem. So its a Manfacturer fault.
Make sure that the drip tip is fully pushed into the tank as this seals the top of the coil - if it isnt sealed you will get spitting/ flooding or leaking from the bottom pin of the tank.
When replacing coil remove the drip tip to make sure the coil is fully seated in the tank. Replace the drip tip after installing the bottom tank cap.

Hopefully if you are aware of it and make the slight adjustment this tank will continue to perform to its wonderful capabilities.
I have a T20-S to review and the coils on this only have 1 ring of holes mid way up - so hopefully this problem shouldnt occur. I have only been using it a day so bit early to tell!

I bought two packs of the Coil. the first was one was great, but the second pack was made with very low quality, five coils didn't last for 10 days

I don't own one of these Enduras, bought some for my iClear 30s. These coils should work, said Innokin, and they do. Exact the same way as the iClear 30s coils do. Beware to close the top cap tight, otherwise the atomizer will leak. I'd like to see more Endura coils with 1.8 and 2.1 ohm, would buy a bunch. Cotton filled coils provide a better taste than the old fashioned one with silica rope inside.

T18 is a nice device when going outside. Taste is average at most, lifespan is not great, but the MTL hit is right. Leaks nonstop as the liquid accumulates right below the tip. Still I use it, and clean the tip with my own clothes nonstop.

Nice Flavour and good package but endura need rba coil.

As always from Innokin, their coils are really good. the flavour on this device is really good and the coils last a a long time depending on your liquid, didn't have a really bad one in 4 packs so far, really amazing.

Perfect, easy to change, cotton wick, good value

Good for the price, no complaints

Perfect quality from Innokin. These coils are great. They all last me at least 2 weeks, no matter which liquid i vaped with. So far i got no bad one in my boxes, good job Innokin!