Grace Glass - Glass 8-arm tree percolator precooler

Add extra smoke diffusion and keep ash out of your bong water with this glass precooler from Grace Glass. The built-in 8-arm tree percolator diffuser downstem 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 precooler will fit into any bong with an 14.5mm glass-on-glass joint. The precooler comes equipped with a 14.5mm glass bowl with 2 glass roll stoppers attached to it. You find the Grace Glass logo on the front of the precooler in black.