From the genius minds at UPC glass comes one of the niftiest innovations in glass percolation available on the market today. The Box Perc has a crazy impressive filtration system that centers around a glass box filtration system that not only works but is also quite entertaining to watch! You won't believe how clean your hits can be until you've given the Box Perc by UPC a try. Los Angeles natives, UPC Glass's Box Perc Ash Catcher feature that cools off your plumes of herbal goodness before they reach your lips. No matter if you prefer a 45-degree or 90-degree male joint, and with a 14mm or 18mm sizes both available, this one has plenty of pieces to fit. UPC has a reputation for making high-quality pieces you'll cherish for years to come. Take your dry herb to another level with this adaptable and sturdy Box Perc Ashcatcher. Always use finely cut herb, or use your favorite grinder to enhance your experience.