GRAV Stax Cooling Glycerin Coil - Sub-Zero Bong Enhancement Color:Red The classic design is an

The classic design is an ideal size for at-home use

This simple design is perfect for those who are looking for a small chamber and a two-hole diffuser to filter your hit to maximize your enjoyment

The Metal/Glass Wick Cartridge holds

this pipe is durable and built to last

GRAV Stax Cooling Glycerin Coil - Sub-Zero Bong Enhancement Color:Red The classic design is anIntroducing the GRAV Stax Glycerin Coil! This incredible coil is made on 65mm tubing and filled with dyed glycerin that can reach sub zero temperatures without freezing. The glycerin is sealed off from the interior of the coil and kept from leaking by a fixed screw cap. Smoke travels up the perc's central stem before descending through the coil. The prolonged exposure to glycerin cools the smoke substantially. The glycerin perc can accommodate any