GLASS Diffuser Coupling, 18.8 Mm, 15 cm

The Glass Diffuser Coupling 18.8 mm (15 cm) is designed to provide smoother, cooler draws by improving diffusion in water pipes. Made from durable clear glass, the integrated diffuser breaks smoke into fine bubbles, enhancing water filtration and airflow. With its standard 18.8 mm joint and extended 15 cm length, this coupling is ideal for larger bongs or deeper water levels. Easy to install and clean, it works perfectly as a replacement part or a functional upgrade.