Time for an upgrade? Or did you just finish picking up the pieces of your downstem off of the kitchen floor? Maybe you’re shopping for a backup just in case. We've all been there. That’s why we carry downstems in different styles and sizes to keep your water pipe fully operational. So if your tube came with a basic downstem that chugs like a mofo, check out our selection of diffusers that will breathe new life into your favorite tube.