Grav
GRAV, previously known as Grav Labs, has been creating high-quality borosilicate glass bongs, smoking pipes, bubblers, spare parts, and accessories since 2004. They are also known for their innovative design shown in their famous collections, like; Helix, STAX, Arcline, and more. Based in Austin, Texas, Grav Labs offers handmade quality and craftsmanship, resulting in the durability and solid, sturdy feel we love about American glass pieces produced in low volume.