Can you trade e cigarette cartridges with another brand?

No, they general are not universal. There are a few popular brands that there are adapters for, but just a few. a href="http://www.vaporkings.com/" rel="nofollow"http://www.vaporkings.com//a and a href="http://thehouseofvapor.com/" rel="nofollow"http://thehouseofvapor.com//a have those brands, and adapters.