New from Grav Labs, the STAX system is a series of fully interchangeable scientific glass bong bases, filters and mouthpieces for DIY bong-building fun! Like all Grav Labs pieces, STAX modules are handmade in the USA, using laboratory-grade scientific glass. Start by choose a beaker base, flare foot straight cylinder or a stemless base. ... Read More

New from Grav Labs, the STAX system is a series of fully interchangeable scientific glass bong bases, filters and mouthpieces for DIY bong-building fun! Like all Grav Labs pieces, STAX modules are handmade in the USA, using laboratory-grade scientific glass. Start by choose a beaker base, flare foot straight cylinder or a stemless base. Each base comes with Grav Labs classic inside-cut 18.8mm > 14.5mm showerhead diffuser downstem, and a 14.5mm clear glass funnel bowl. From there you can make your STAX bong as big as you want it to be! Use one or more filter modules, available with one of four types of percs, and then choose your mouthpiece. You can even add Grav Labs' famous Helix smoke-cooling technology to your STAX kit with the Helix mouthpiece!

You can keep your STAX bong kit small and simple by combining the beaker base with the STAX Bubbler Conversion Kit, or go mad scientist and build a skyscraper-sized bong. The modules fit together with 34mm glass-on-glass joints and can be secured with keck clips. Made of 5mm-thick borosilicate glass and easy to clean, these STAX mix and match bong parts are are built to last!