That is one thing I love about most Kanger products, multiple tanks take the same exact coils
Kanger single coils fit: Protank, Mini Protank, Evod, Protank 2, Mini Protank 2 (they might fit the T3S and MT3 as well)
Kanger Dual Coils fit: Protank 3, Mini Protank 3, Aerotank, Evod 2, Aerotank Mega, Aerotank Mini, T3D (I know the new Aerotanks have a fancy enclosed coil but the original dual coils fit as well)
And the biggest advantage to Kanger coils (hands down) is the absolute ease of rebuilding them! I use four different Kanger tanks everyday but haven't used a stock coil in months! Rebuilding is where it's at for flavor and vapor!