This downstem aka low profile or low pro is a standard part for glass on glass bongs. Affordable and made from high-quality glass, these diffused down stems are a nice way to diffuse your smoke as it enters your bong
This downstem is able to fit a water pipe with a female joint measuring 19mm in diameter. It is able to house a bowl with a male attachment that measures 14mm wide.
*All measurements are made from the bottom of the joint to the end of the downstem.*