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Nucleus Replacement Glass Downstem

Rated 4.8 out of 5 stars (25 reviews)

$ 16.99 Free Shipping In Stock
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About this Product

Product SKU: NU-DS-3.5-S

When you've lost or broken the downstem to your Nucleus water pipe, this replacement downstem is what you need.

This Nucleus replacement downstem fits most Nucleus products. It's made of clear borosilicate glass and has Nucleus branding on the side. 

Just like the original downstem that came with your Nucleus water pipe, this replacement downstem has a frosted joint and slits at the bottom to diffuse your smoke for super smooth rips.

This downstem replacement features a 18mm to 14mm joint size. This means it fits inside a larger 18mm female joint and provides you with a 14mm female joint for your bowl piece or banger. The downstem is available in both 3.5" or 4" lengths.

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Nucleus downstem
"Great downstem, affordable, and it really smooths out your hits. If you take good care of it, it will last."

- Alex4ten1 Verified Buyer

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


Fits into a

14.5mm Female Joint

4" inches


Borosilicate Glass


  • 100% Borosilicate Glass
  • 14.5mm
  • 18.8mm
  • 18.8mm > 14.5mm Downstem
  • 18mm > 14 mm
  • 4 inches
  • Diffused Downstem
  • Downstem
  • Female Joint
  • For Female Joints
  • Fulfilled by Crowdship
  • Glass Downstem

Included in Your Purchase

  • Nucleus Replacement Glass Downstem
  • Free, Fast Shipping (in the US)
  • Discrete Packaging
  • 100% Satisfaction Guarantee
  • Expert Product Support