This glass bong downstem is designed with a 2-hole diffuser to provide smoother airflow and better filtration. Measuring 3.5 inches from the bottom of the frosted joint (4.5 inches total), it’s a versatile replacement or upgrade for your setup. Built with a 14mm female joint on top and a 10mm male joint for the bowl, it’s perfect for customizing a variety of bongs.

• Length: 3.5" measured from joint / 4.5" total

• Joint Sizes: 14mm female → 10mm male

• Diffusion: 2-hole multi-hole design for smoother hits

• Material: Durable borosilicate glass

• Use: Replacement downstem for glass bongs