www.generalradiator.com/

Each year since I have purchased a radiator from them there is a leak, and each time they are trying to resolve the problem one way - send me a fairy dust which suppose to help get rid of the problem. Well, it helps for a while, then the problem returns. I have asked them to come and fix the radiator for good since I still have a warranty, but they would not do that.
Don't deal with them! Their phone number is: 001-773-224-3006.