Here’s a pretty good deal on a 5-pack of Joyetech Delta 2 coils. These are 0.5ohms with a suggested range of 20-45 watts. I had a look around and the average price that these are going for is about $20-$22 so you’ll definitely benefit more if you’re the type of person that likes to have lots of coils on hand.
Authentic Joyetech Delta 2 Coils (5-Pack)
$14.75Get It Here