“I dislike single use items, and unfortunately this cartridge is single use only since you are unable to separate the mouthpiece once you fully connect it to the tank (I wasted a cartridge by accident when I testing connecting the mouthpiece to the tank); I unsuccessfully tried to pull it apart with pliers. Aside from that though, the cartridge works very well, and seems to distribute heat very evenly. I'm bummed that I can't refill it, otherwise I'd order this again.”
