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Description

Grav Labs 18.8mm Male to 14.5mm Female Reduction Glass Adapter

Expand the range of accessories you can match to your water pipe with the Grav reduction adapter.

This glass piece is designed to convert a 18.8mm female joint into a 14.5mm female, so you can use a smaller bowl and other accessories on your piece. It’s made with thick borosilicate glass and measures 2 inches in height. 

size chest(in.) waist(in.) hips(in.)
XS 34-36 27-29 34.5-36.5
S 36-38 29-31 36.5-38.5
M 38-40 31-33 38.5-40.5
L 40-42 33-36 40.5-43.5
XL 42-45 36-40 43.5-47.5
XXL 45-48 40-44 47.5-51.5