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Grav Labs 18mm to 14mm 4.5" Fission Downstem

Rated 4.8 out of 5 stars (14 reviews)

$ 18.99 Free Shipping In Stock
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About this Product

Product SKU: DSG115.SW.0

This 4.5" fission downstem from GRAV allows to add powerful diffusion to any 18mm beaker or straight-based water pipe with an angled joint. This downstem has fissure holes to diffuse the smoke through water for smoother inhales. 

To ensure that the fissure holes have smooth edges to reduce clogging, the holes were made with a tungsten rod while the glass was hot. When you add this fissure downstem to your setup, you'll appreciate the improved smoking experience. No more coughing and settling for harsh, mediocre hits. 

This downstem with fissure holes is sure to become your most used smoking accessory. It's another quality product from GRAV that's designed to take your smoking experience to the next level.

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"Flawless and fits my favorite grav beaker. Thanks to all the grav team for your quality and customer service!"

- Judith T. Verified Buyer

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


Fits into a

18.8mm Female Joint


Length ( End of Ground Joint to Base)

  • 18.8mm
  • 18.8mm > 14.5mm Downstem
  • 4.5 inches
  • Borosilicate Glass
  • Branded Glass
  • Clear Glass
  • Delivers smoother cough-free hits
  • Diffused Downstem
  • Downstem
  • Female Joint
  • Fission Downstem
  • Glass Accessories
  • Mothership Disconnected
  • Scientific Glass

Included in Your Purchase

  • Grav Labs 18mm to 14mm 4.5" Fission Downstem
  • Free, Fast Shipping (in the US)
  • Discrete Packaging
  • 100% Satisfaction Guarantee
  • Expert Product Support