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Glasscity 18.8mm 4-Arm Diffuser Downstem

Rated 4.8 out of 5 stars (16 reviews)

$ 11.99 Free Shipping In Stock
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About this Product

Product SKU: HBK-KED3-19-CLR-10CM

This Glasscity 4-Arm Diffuser Downstem will add extraordinary percolation power to your favorite bong. It's made with top-quality borosilicate glass and has a slitted 4-arm percolator on the end. Each of the arms has multiple slits to create lots of bubbly action that results in smooth rips that are gentle on your throat and lungs. 

This diffuser has an 18.8 mm female joint and fits 18.8 mm ground joints and 18.8 mm male herb bowls. It comes in several lengths to ensure there's one that fits your go-to bong. If you're not sure what length you need, refer to the photo here that shows how to measure the ideal length of a downstem. 

In addition to improving the quality of your rips, this clear glass diffuser with the bold Glasscity Logo will also add a touch style to your bong. 

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Perfect Addition
"This thing rocks, nothing short of what I expected. Clean, clear glass. The size is very accurate."

- Andrew Aldridge Verified Buyer

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


Borosilicate Glass


  • Accessories
  • Available in Several Lengths
  • Downstem
  • Fits All 18.8mm Joints
  • Glasscity Logo on Side
  • Slitted 4-Arm Percolator