I don't believe it is that as it happens with all 7 coils I got delivered with the device. 5 ni200, 1 SS316L, and 1 Kanthal BVC. I've heard bad things about Innokin tanks before while browsing the forums. Might go with a smok or kangertech next... Just wish products would work how they're supposed to out of the box. I bought from myvaporstore, but they haven't responded to any emails, and I can't find a contact number for customer support. :/