Here is a great deal on the Ni200 OCC heads by Kanger. These should only be used in mod that uses a temperature control chip (i.e. DNA 40). These have been color coated in blue so you don't confuse them with standard heads Kanger heads.
Great way to try temperature control at a great price.
WHERE: >> HERE <<
USE COUPON CODE MAXY TO BRING THE TOTAL TO $11.00