Quality borosilicate takes this American glass bubbler to heavy-hitter status. Give it a pull from the sleek mouthpiece atop a comfortably curved neck. Concentrates are transformed into clean, fresh vapor that descends from a quartz banger nail. The open-top bucket silhouette makes it easy to maneuver a generous amount of your favorite legal waxy extracts flawlessly. Impressively handcrafted in California, the UPC 5mm Thick Double Bubbler Rig delivers with peak performance in an efficient 8-inch stature. Sturdy contoured maria rings stabilize the neck for added durability, too. Two fixed streamline downstems channel crisp concentrate vapor through two rounds of water filtration. Silky smooth clouds climb through the sleek mouthpiece to make a sophisticated impression. This captivating concentrate rig is also available with single, triple, and even over-the-top quadruple bubbler sizes right here at DopeBoo’s online glass shop. High quality borosilicate with extra-thick construction is UPC’s signature style, taking their handcrafted pieces to top shelf quality.