It is a Vaporx 510XL
tank Clearomizer cartridge- you cant replace the coils/threads without buying a new tank- I mean its only 9 dollars but this is the second time in two weeks and the store I bought it from wont replace it any longer- When I took it out of the box the day before yesterday and used it - it worked great, like normal- then this morning, nothing unusual, I didn't drop it or overfill it or anything- it just stopped working...no vapor, no heating sound, nothing. I tried the hot water thing and it did not work. Any other ideas or do I have to go buy another one? I sent a complaint to Vaporx since this has happened more than once, but haven't heard anything from them