Tanks, atomizers, liquid containers with eGo connection:
With a very few exceptions all of these tanks have a connection/threads that fits perfectly on an eGo battery, where a cap with inner threads is screwed onto the battery.
You can use tanks with a 510 connection on an eGo battery, but should then get a “beauty ring “in order to cover the outer threads. This is not strictly necessary but your set up will look a lot better if you do. See examples here
More about different connections/thread types here.
Atomisers has a DOA (defective on arrival) guarantee. It should, for example, obviously work when you receive it but after that there are no more guarantees. You should always try the mizer as soon as you receive it. The various tanks in different plastic materials may not be compatible with different liquids. Since there are countless varieties as well as different sizes, Pink Mule does not guarantee the possible breaking of the tank due to liquids. You can follow the forums for vapers where people exchanges their experiences or have a look on Pink Mule's tank killer list of some of the more famous "tank-killers".