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 ...
Grav Labs - Mini Steamroller Glass Pipe - 5 InchGrav Labs steamroller pipes are made of the same laboratory-grade borosilicate glass tubes as their bongs, but with the old-school s...
Grav Labs - Octabowl Glass Slide Bowl With Built-in Glass ScreenGrav Labs glass bong spare and replacement parts are custom made in the USA (Austin, Texas) using only high quality ...
Slide bowl attachment for the Helix Multi pipe, from Grav Labs!Made in the USA, ships from the USAHigh-quality borosilicate glass14.5mm glass-on-glass jointClear glass rollstoppers...
Grav Labs - Steamroller Glass Pipe - 25mm - 7 InchGrav Labs steamroller pipes are made of the same laboratory-grade borosilicate glass tubes as their bongs, but with the old-school...
Grav Labs - Steamroller Glass Pipe - 38mm - 12 InchGrav Labs steamroller pipes are made of the same laboratory-grade borosilicate glass tubes as their bongs, but with the old-schoo...
Grav Labs - Steamroller Glass Pipe - 45mm - 10 InchGrav Labs steamroller pipes are made of the same laboratory-grade borosilicate glass tubes as their bongs, but with the old-schoo...
Scientific glass steamroller, from Grav Labs!Made in the USA, ships from the USAHigh grade borosilicate glass14.5mm funnel bowl includedCarb hole on left side of tubeChoose Grav La...
Grav Labs - Steamroller Glass Pipe - 45mm - 14 InchGrav Labs steamroller pipes are made of the same laboratory-grade borosilicate glass tubes as their bongs, but with the old-schoo...
Grav Labs - Steamroller Glass Pipe - 50mm - 12 InchGrav Labs steamroller pipes are made of the same laboratory-grade borosilicate glass tubes as their bongs, but with the old-schoo...