threads, adapters etc.

[jclifford]

first time out, so please bear with me.
I am having difficulty sorting out which thread fits which battery. A friend "donated" some equipment and I am unsure of which clearometers (?) to buy for different units. I have a Vision spinner and an Ego C twist. I will probably spring for the Pro Vari in the next week or two. I definitely like switching out flavors constantly so it seems as though many tanks are on the agenda.
thank you

 

[The Ocelot]

Hi and welcome! A Twist and a Spinner have 510 internal threading, which is what things (like vivi novas) screw into and external "eGo" threading which is what things like clearomizers (like CE4s) screw onto. See, clear as mud...

ETA: I get to use the new graphic I made! Yippee!

 

[jclifford]

actually, an extremely helpful comment. I never noticed the external thread (duh!)
thank you