We broke down a Heavy Hitters vape cartridge as part of our updated Heavy Hitters review. Inside we found a coiled atomizer. It took a pair of pliers to get the mouthpiece off, so we would categorize this one as not refillable.
If you are looking at what makes up a higher quality cart, check out our best and worst vape cartridge design pics. What do you think of the inside? Some people might prefer ceramic, but the coiled atomizer does give a harder hit. Comment below or discuss in our forum!