Grav Labs 14.5mm to 18.8mm Male Expansion Adapter

Rated 5 out of 5 stars (6 reviews)

$ 12.99 Free Shipping In Stock
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About this Product

Product SKU: A69M

Ready, set, convert!  The Grav Expansion Adapter will diversify and simplify your smoking experience.

This borosilicate glass accessory is designed to increase the diameter of a 14.5mm female joint to a 18.8mm male. It's perfect if you selected a wrong joint on one of your accessories, or if you'd like to try out a new combination with your favorite water pipe.

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No complaints
"Product works as intended, good quality, no complaints "

- Eduardo Delgado Verified Buyer

All products on this site are intended for tobacco or legal dry herb usage.


  • 14.5mm
  • 18.8mm
  • Adapter
  • Borosilicate Glass
  • Clear Glass
  • For Female Joints
  • Glass Accessories
  • Ground Joint
  • Male Joint
  • Mothership Disconnected
  • Scientific Glass
  • Thick Glass

Included in Your Purchase

  • Grav Labs 14.5mm to 18.8mm Male Expansion Adapter
  • Free, Fast Shipping (in the US)
  • Discrete Packaging
  • 100% Satisfaction Guarantee
  • Expert Product Support