LAB Downstems

Description: The Logarithmic Downstem has base 10 hole diffusion to deliver the smoothest smoke mathematically possible from your mason jar bong. ...

Description: The Hexagram Downstem has 6 hole diffusion and epitomizes the "less is more" idiom, providing your mason jar bongs the holiest percol...

Description: The Matrix Downstem has 15 hole diffusion using triple stacked percolation for consistent circulation from your mason jar bong. Inc...

Description: The Standard Downstem is included in the STARTER LAB KIT and offers basic percolation for the mason jar bong.  Includes: 1x 3D Pri...

Description: Replacement for LAB KITS and select Glasstic products. Includes: 1x 14mm Glass Downstem Dimensions: Length: 1.0 in Width: 1.0 in ...

Description: The Potion Downstem features a single-hole balloon percolator that is sure to transform the way you smoke from your mason jar bong, e...

Description: The Claw Downstem has 4 hole diffusion and is an instant win for your mason jar bong's percolation, unlike those pesky arcade machine...