Grav Gender/Size Adapter - Converts 18mm Female to 14mm Male

Grav Gender Adapters are designed to convert the gender fitting on your favorite glass rig, while size expansion adapters will increase the diameter to make them compatible with larger accessories. This combined Gender & Reduction Adapter changes a 14mm female joint into an 18mm male joint.

This straight adapter from Grav is made with premium borosilicate glass and features an 18mm male joint on the bottom while accepting 14mm female bowls, bangers, or other glass water pipe accessories on top. You can also use this adapter upside-down to convert a 14mm female joint into an 18mm male joint. 

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