Low Pro Fire-Cut Down-Stem
This down-stem fits an 18mm / 19mm water-pipe fitting and takes an 18mm bowl.
Fire-cut down-stems provide the best and most reliable diffusion while preventing blockage by spent combusted materials.The many small holes are cut using a hydrogen torch, a difficult and complicated process. The ground joint is a heavy high quality fitting.
3", 3.5", 4", 4.5", 5" and 6".