Bong Downstem | 8 Slit Diffusion | Castle Glassworks

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A green glass downstem with the Castle Glassworks logo lies horizontally on a gritty, industrial surface, illuminated by soft natural light streaming through iron bars in the background. The downstem features intricate details and 8 slits, casting subtle green reflections on the surrounding area.

increased filtration

The 8-slit design maximizes filtration by breaking smoke into smaller bubbles, creating cooler, smoother hits that are gentler on your throat and lungs. This downstem delivers a consistently enjoyable smoking session every time. Thanks to its extra filtration and open-end design, the 8-slit downstem offers smooth hits without sacrificing airflow.

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A sleek, purple glass downstem with the Castle Glassworks logo is positioned vertically against a rugged, rusted metal frame. The contrast between the downstem's smooth, polished surface and the textured, corroded background highlights the downstem's intricate design, which includes 8 slits at the bottom. The scene is dimly lit, creating a moody, industrial atmosphere.

Designed with everyone in mind

Whether you’re a long-time smoker or just getting started, the 8-Slit Downstem from Castle Glassworks is made to elevate your smoking experience. Crafted for smooth hits and consistent performance, this essential accessory uses eight slits to cool and filter your smoke. Don’t miss out on the perfect upgrade for your glass collection—try the 8-Slit Downstem today and feel the difference.

Product details

Universal Fit

Our downstems are compatible with all Castle Glassworks beakers, making it easy to mix and match your favorite Castle accessories without worry.

Durable Logo

Never worry about your logo fading again. Our heat-bonded vinyl process ensures that the logo on your downstem remains intact, even with regular use and cleaning.

Colored Borosilicate Glass

Our downstems are carefully crafted from colored borosilicate glass, which is known for its strength and heat resistance. This means you can enjoy sessions without stressing about cracks while cleaning. Plus, the vibrant colors give your piece a fresh, stylish look that stands out.

Collapsible row 4

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FAQs

Please read our FAQs page to find out more.

Why does the downstem have eight slits?

More slits allow more air and water to interact with the smoke, breaking it into smaller bubbles for a cooler, smoother inhalation.

Is there a specific water level I should maintain with an 8-slit downstem?

Make sure the slits are fully submerged, but avoid overfilling. One inch above the slits is a good starting point.

Can I use a carbon filter or ash catcher with it?

Yes. Just ensure your setup’s joint sizes align, and enjoy even cleaner hits.

Is it worth the investment if I already have a regular downstem?

Many find the smoother, cooler hits worth upgrading. It’s a small accessory that can make a big difference.

Does the 8-slit downstem change how I pack my bowl?

You can pack your bowl the same way you would with a standard downstem. The design only affects how the smoke is diffused.

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