• Hi Si Glass Diffused Downstem - Hi Si Glass Diffused Downstem
  • Hi Si Glass Diffused Downstem - Hi Si Glass Diffused Downstem
  • Hi Si Glass Diffused Downstem - Hi Si Glass Diffused Downstem
  • Hi Si Glass Diffused Downstem - Hi Si Glass Diffused Downstem
Authorized Hi Si Glass Retailer

Hi Si Glass Diffused Downstem

4.88 out of 5 stars from 17 reviews.
$ 44.00

On Sale! - Originally $ 52.00

Hi Si always makes scientific glass look easy, and they don't hold back on their downstems. These downstems are diffused with multiple holes surrounding a cylindrical shape. They are for use with a 18.8mm female joint and they have a 14.5mm female joint. These work as a replacement for existing Hi Si tubes and they will work great with any suitable sized pipe.


  • Clear Glass
  • Diffused Downstem
  • 6.5 inches
  • Highest Quality Materials
  • Thick Glass

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Features of this Downstem

Diffused Downstem

A diffused downstem is a simple glass tube that puts the smoke down through the water. Smoke diffuses into the water through the downstems holes or slits.

Thick Glass

We consider this piece to have thick glass, which helps with the durability of certain glass items.  Thick glass means your piece is less likely to break as a result of damage.  While many of our pieces have thick glass, we felt the need to point it out specifically here.

Downstems in this Price Range


Hi Si Glass

Hi Si laboratory is a vendor of scientific glass founded in 2008. After 40 years of developing advanced glass products, Hi Si Glass was created to exceed the standards already set in the industry. With medical patients in mind, Hi Si designs its glassware to reduce health risks associated with high temperature smoke. This led to their creation of the geyser perc, which allows for maximum cooling, easy draw, and durability. All Hi Si Glass pipes are made using the highest quality German glass downstems and joints. Hi Si Glass is a vendor that our Smoke Cartel customers have counted on for years, and we are proud to work in partnership with their entire team.

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Reviews about this Downstem

Rated 4.88 out of 5.0 from 17 reviews.

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