Give your setup a clean upgrade with the GRAV Fission Downstem. Designed to slot into any 18 mm joint and accept your favourite 14 mm cone or banger, this stem boosts smoothness and pulls cooler, better-filtered hits.

Each downstem features precision-cut fission holes formed with a single tungsten rod while the glass is molten — meaning super-clean edges, less clogging, and consistent diffusion every session.