3.5 Inch Glass Diffused Downstem | 18mm to 14mm

At 3.5 inches (89mm) in length, this replacement glass downstem is ideal for bongs between 9 and 9.5 inches tall.

It’s made from high-quality borosilicate glass and has a 6-slit design at the bottom, which helps smooth out your hits.

The size of this downstem is 18mm to 14mm, meaning it fits into a bong with an 18mm (or 19mm) female joint, and the inside can hold a 14mm (or 14.5mm) male herb bowl.

If you’re unsure about the gender or size of your joint and herb bowl, or don’t know the length of downstem you need, please check out our article—”How To Measure And Buy A Downstem,” where I break it down for you to avoid getting the wrong size.