you need to know what type of atomizer you have first. if it came with your e-go T, it is most likely compatible with your 510 drip tip. when ordering your attys, just make sure they're 510 connection attys, because that is what the e-go T is (a 510 connection), and the drip tip will obv work. but if you want to go into different type of attys other than the 510s, then it's easy and affordable to
buy mini adapters that screw on with them.