Ok I have tried a couple of different CE2's and decided I liked the "Royal Smoker 510 XL CE2 3.2 ohm steel" the best to use in my tank, Every-time I have bought the RS's from a couple of different vendors they have always come in a RS's box and always have had a white mouth piece with a clear type inner gasket. I bought some from a new vendor I haven't used before and they came in a box labeled "Vaporizer" and the mouth piece is black as is the inner gasket. The vendor swears their RS's but I'm thinking not. Tell me if I'm wrong in my thinking since I have tried the others in the past and did care for them. Thanks everyone...