Slotted diffuser coupling 18.8 on 14.5-11cm

The Slotted Diffuser Coupling 18.8 to 14.5 mm (11 cm) is a practical glass adapter designed to improve filtration and versatility in water pipe setups. Made from durable clear glass, the slotted diffuser breaks smoke into finer bubbles for smoother and cooler draws. With a male 18.8 mm joint and a female 14.5 mm connection, this coupling allows you to use smaller accessories while enhancing airflow. Its 11 cm length makes it suitable for many standard bongs and easy to install or clean—ideal as both an upgrade and a replacement part.