ROOR® Reducing 13-Hole low-profile down stem.
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 14.5mm and will fit with any 14.5mm 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

Includes:

• ROOR® Reducing 13-Hole Low-Profile Downstem 18.8mm → 14.5mm