Quantum Sci Glass Downstem - Black 18mm female
These glass downstems were made to be long lasting. Featuring a thick and heat-resistant borosilicate glass body, these bong downstems are some of...
Quantum Sci Glass Downstem - White Matrix
Designed with a matrix diffuser for excellent filtration and excellent airflow. This bong downstem is not your typical, cheap glass downstem that have...
Quantum Sci Glass Downstem - Black
Quantum Sci glass bongs are some of the best water pipes on the market. This is because we make sure our glass not only look good but hold up to the...
Quantum Sci Glass Downstem - Clear
These glass downstems are of premium quality and are available in four different lengths. Measured from tip of the diffuser to the very beginning of the...