GlassCity - Honeycomb 5-arm Tree PercTree percs are a great way to get lots of bubbles and less drag, and GlassCity's welded 5-arm honeycomb perc does plenty of that. Featuring the...
GlassCity - Pearl Diffuser DowntubeBreak down your bubbles and filter your smoke with this big flame-polished pearl diffuser! Featuring the GlassCity logo, this diffuser downstem w...
Grace Glass - Glass 8-arm tree percolator precoolerAdd extra smoke diffusion and keep ash out of your bong water with this glass precooler from Grace Glass. The built-in 8-arm tree...
Grace Glass - Limited Edition Precooler with HoneyComb Disc Perc and Showerhead Diffuser - Choice of 4 colorsThis Grace Glass Limited Edition Precooler is a unique accessory for yo...
Grace Glass -Glass 6-arm tree percolator precooler with oil dome and nailAdd extra smoke diffusion and keep ash out of your bong water with this glass precooler from Grace Glass. T...
Grace Glass Precooler with 24-slit keg percolator 18.8 greenAdd extra smoke diffusion and keep unwanted debris out of your bong water with this glass precooler from Grace Glass. Th...
Helix cross-cut diffuser downstem for any tube, from Grav Labs!Made in the USA, ships from the USAHigh grade borosilicate glassLow-profile inside-cut glass-on-glass jointEtched lab...
Grav Labs - Helix Pre-Mix Chamber Precooler - LargeAdd the Helix tiny swirling tornado of smoke cooling power to any bong with this Helix Pre-Mix Chamber precooler from Grav Labs! ...
Grav Labs - Helix Pre-Mix Chamber Precooler - SmallAdd the Helix tiny swirling tornado of smoke cooling power to any bong with this Helix Pre-Mix Chamber precooler from Grav Labs! ...
Grav Labs - Inside-Cut Showerhead Diffuser Downstem - 18.8mm > 14.5mmHandmade in the USA, this high-grade borosilicate glass downstem from Grav Labs is both a diffuser and adapter ...