Want to try out Grav’s Helix system but already have an awesome water pipe? Then the Helix Pre-Mix Chamber is for you.
Featuring a Venturi chamber with three intake holes, this piece spins and cools the smoke before it enters your mouthpiece. To use, simply place between your bowl and water pipe, and enjoy the smooth Helix smoking experience we all know and love.
The Grav 14.5mm Pre-Mix Chamber comes with a Grav decal in various colors.