Grace Glass Precooler with 11-slit Keg Percolator | 18.8mm | Green

Add extra smoke diffusion and keep unwanted debris out of your bong water with this glass precooler from Grace Glass. The green 11-slit keg percolator precooler from Grace Glass breaks up smoke into smaller bubbles, filtering your hit for a cooler and smoother pull, before it even reaches the main chamber of your bong!

This percolator precooler comes equipped with a 18.8mm green glass bowl with green roll stoppers. The Grace Glass logo is featured on the front of the precooler in a matching green color. Its flat base makes sure that it stands steady when removing it from your tube. This precooler fits into any bong with a 18.8mm glass-on-glass joint.