Grav Labs - Helix Pre-Mix Chamber Precooler - Large

Add the Helix tiny swirling tornado of smoke cooling power to any bong with this Helix Pre-Mix Chamber precooler from Grav Labs! Its funnel-shaped Venturi Chamber body features micro-holes at the shoulders, all angled in the same direction to create a vortex of cooler, smoother smoke that's fascinating to watch and easier on your throat and lungs! Shown here in use with a bowl and downstem, but these are NOT included.

Choose 14.5mm or 18.8mm joint size when ordering. A color Grav Labs decal is applied on the tube in black, blue, red, green, or etched, as available.