it caps perfectly with any carb caps and creates a better seal

17-Inch Tall Scientific Profile

Packaging Size: 10" x 5

the middle marble

15" Scientific Glass Bong with Tree Perc & Spiral Cooling grinders it caps perfectly with anyThe Croia Glass 15 inch scientific glass bong blends advanced filtration engineering with a striking mechanical aesthetic. Built from premium borosilicate glass, this design combines a multi arm tree percolator, an internal spiral cooling coil, and a recycler inspired chamber layout that guides smoke through multiple cooling stages. The result is a visually dynamic bong that delivers smoother hits, cooler airflow, and an unmistakable futuristic