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.
Get Connected:Made for Bongs & Water Pipes
Grav® Joint Size & Gender Adapter
Male Joints - Fits Female Joints
Premium Borosilicate Glass
14mm Male Joint on Top
18mm Male Joint Bottom
Changes Size & Gender of Joint
Holds 14mm Female Accessories
Converts 14mm Female to 18mm Male
Converts 18mm Female to 14mm Male
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works as expected.