Grace Glass Pre-Cooler Percolator – 18.8mm

The Grace Glass Pre-Cooler Percolator – 18.8mm is a unique accessory for your bong! Smoke first passes through the pre-cooler percolator before entering your bong, resulting in an even fresher and smoother hit. You'll also have less to worry about when cleaning your bong. The pre-cooler is made of solid, heat-resistant borosilicate glass. It comes with a bowl. All this for the ultimate smoking experience! Can also be used for dabbing.