Diffused Matrix Downstem 18mm to 14mm – 4.5", 5" & 6"
A matrix-slit downstem, 18mm to 14mm, in nine lengths.
Matrix slitting cuts the openings around the whole circumference rather than just the tip, so the smoke exits in every direction at once. It is a meaningfully better diffuser than a standard slotted downstem and costs very little more.
- Matrix slit pattern: Diffuses around the full circumference.
- 18mm to 14mm: 18mm into the joint, 14mm bowl on top.
- 2" to 6": Measure joint to base before choosing.
Ships fast in plain, unmarked packaging.




































