This Thick Ass Glass Matrix Downstem is a heavy-duty glass replacement downstem featuring a matrix-style diffuser at the bottom for increased filtration and smoother airflow. The oversized 28mm outer joint fits larger bong openings, while the 18mm female joint accepts standard 18mm male bowls and accessories. Built from thick borosilicate glass for a durable replacement or upgrade.

• Length: 4.75" / 120mm

• Joint Size: 28mm male to 18mm female

• Matrix diffuser perc

• Thick borosilicate glass

• Made by Thick Ass Glass (TAG)