Switch Up Your Function

Premium Quality Bong Downstems

A cracked downstem shouldn’t bench your bong. Castle Glassworks stocks precision-made replacements to match your piece. Measure your existing stem (or check our Downstem Fit Guide), and we’ll get you back to smooth filtration fast.

No leaks, borosilicate glass with snug joint seals
Diffusion options, from basic slits to multi-hole percolation
Measured for your bong
Thick glass that won’t snap during use or cleaning

Replace or Upgrade—Your Call

Need a quick fix? We’ve got stock downstems that fit most bongs. Want better filtration? Try our upgraded diffusion stems for cooler hits. Either way, you’re back in business.

Downstem – 9 Hole (5 in)

$17.99

1 total reviews

Are you looking to maximize the function from your new or current bong setup? Then the 9 Hole downstem from Castle Glassworks was made for you! The 9-hole design of this downstem guarantees exceptional filtration, resulting in consistently smooth and satisfying hits.

Not only does the 9 Hole downstem add filtration and diffusion to your piece, it also adds style as it has been meticulously crafted from high quality colored borosilicate glass. Elevate your experience with this premium downstem and unlock a smoking experience like no other.

Color: Green