Ivapesupply has Atom gclap clapton coils for the Atlantis or any tank with compatable coils for $1.30 a box of four. Use coupon code IVS30 and get 30% off so they are under $1 a box. They have both .3 and.5ohm. The website seems kinda sketchy but I have spent hundreds there over the last 3 years or so. They're legit.