GLASS Slot Diffuser Coupling, 18.8 Mm, 11 cm

The Glass Slot Diffuser Coupling 18.8 mm (11 cm) is designed to deliver smoother, cooler draws through improved diffusion. Crafted from durable clear glass, the slotted diffuser end breaks smoke into finer bubbles, enhancing filtration and airflow. With a standard 18.8 mm joint and an 11 cm length, this coupling is compatible with many glass bongs and water pipes and is easy to install and clean—ideal as a functional upgrade or replacement part.