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13-Hole Diffused Downstem
Beaker 5"
18.8mm → 18.8mm


ROOR® 13-Hole Diffused Classic Style downstem.
The joint is 18.8mm where the 14mm Duran Schott Glass diameter downstem meets the tube. The tip of the ROOR® 13-Hole downstem has 13 individual holes blown into a beautiful patter to allow for maximum diffusion per hit. The Joint where the bowl is inserted measures 18.8mm and will fit with any 18.8mm male glass joint bowl.
All downstems are measured in ¼” inch increments from the bottom of joint.

Standard ROOR® Downstem Sizes are as follows, however, ROOR® always recommends that you measure your downstem when you buy your tube so that you always know your perfect length.
  • Standard Classic ROOR® Straight Tube Lengths 3 ½” – 4” Measures ¼” increments
  • Standard Classic ROOR® Beaker Lengths 5 ¼” – 6” Measures ¼” increments

  • ROOR® 13-Hole Classic Style Downstem 18.8mm → 18.8mm

Production/Shipping time 2-5 days.
The product image serves only as an example. The colors and arrangement of the color applications may differ due to the handcraftsmanship. We reserve the right to give our glass artists creative freedom, which is the only way to ensure the creation of the highest quality unique glass specimens.

! WARNING This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to


by John Sullivan, 01/03/2021
Very well made, but potential buyers the picture isnt the same as what is shown. The area between the joints is quite wide mouthed? or flared? compared to the photo that is shown.
by Manuel Montoya, 10/30/2020
Hi, Can I please ask to have the decals to be black
by Coty Aton, 09/20/2019
Excellent diffusion it genuinely does come out of all of the holes not just the top few. You get the quality you pay for for sure.
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