Description
The Glass Diffuser Coupling 18.8 mm (13 cm) is designed to enhance airflow and filtration in water pipes. Crafted from durable clear glass, the integrated diffuser breaks smoke into finer bubbles, delivering smoother and cooler draws. With a standard 18.8 mm joint and an extended 13 cm length, this coupling fits many glass bongs and is simple to install, remove, and clean—ideal as a replacement part or functional upgrade.