This 8" GRAV beaker-bottom water pipe is made out of high-quality borosilicate.

This 4.5" GRAV fission downstem is made out of 2mm thick borosilicate and fits a 14mm bowl.

This 3.3" GRAV fission downstem is made out of 2mm thick borosilicate and fits a 14mm bowl.

This GRAV funnel bowl is made out of high-quality borosilicate.

This 14mm GRAV helix taster bowl is made out of high-quality borosilicate.

This 14mm GRAV octobowl is made out of high-quality borosilicate.

Made in the USA.

Made in the USA.