Chongz Glass Diffusor Stem with Drop in Bowl.
Replacement glass stems / downtubes for bongs and waterpipes. They have a diffusor feature at the bottom to help cool your smoke and they also feature Chongz branding along the side.
Available in different lengths & socket sizes.
Please refer to the last image for an example of the measurements.
A: Joint size and sex of downtube
B: Bowl fitting size and sex of downtube
This is where your bowl will attach.
(I.E A female fitting on this meaurment with take a drop in herb bowl with a male joint)
C: Length from bottom of joint to the bottom of the downtube.