This is not a referral link (although it does look like one initially).

Amazon referral links will have a linkId and linkCode as query parameters.
The 'ref_' query param you see here is from something else.
OP likely just found this randomly on Amazon and copied whatever was in his/her browser URL bar.

This would have been the better link to submit:

• http://www.amazon.com/Jetboil-Zip-Cooking-System-Black/dp/B004UVPDUM
  

or even more simply:

• http://www.amazon.com/dp/B004UVPDUM