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Aqua Lab Technologies

14/18mm Replacement Downstems

Best Seller
Best Seller
15 reviews

Aqua Lab Technologies replacement downstems fit most standard glass bongs, bubblers and water pipes requiring a 14/18mm fitting.  The 14/18mm replacement downstems feature quality boro glass and 6 diffusion slits for added airflow and classic water diffusion. Glass replacement downstems are handblown in California for Aqua Lab from quality, American borosilicate glass. 

Downstem Features:

  • 14/18mm diffused downstem
  • Bong joint fitting: 18mm
  • Slide joint fitting: 14mm
  • Borosilicate glass
  • 6-slit, open-end diffusion tip
  • Available in different lengths 
  • Made in the USA

NOTE: All downstems are measured from the top of the ground joint to the end of the diffusion tip. Please see our diagram in the listing for complete downstem measuring instructions.

Added June 20, 2018

Customer Reviews
4.9 Based on 15 Reviews
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DB
05/27/2020
David B.
United States United States
Replacement downstream

Product perfect shipping was fast great company

GC
05/06/2020
Gabriel C.
United States United States
10/10 down stem

This down stem made me rethink every life choice I made relevant to this purchase! Why didn’t I use Aqualab YEARS ago?! WHY DIDNT I SAVE COUNTLESS GAS ON TRIPS TO LOCAL SMOKE SHOPS ON DOWN STEMS THAT JUST BROKE EASILY?! WHHHHHHYYYYY!....Thankfully Aqualab saved me from anymore having to think, now when I need something I’m going to them and if you read this I hope you’ve already added this to your cart. If not, then lord have mercy on your soul.

AG
05/05/2020
Andrew G.
United States United States
Make sure to measure

Welp, I tried eye balling the dimensions and didn’t work out for me. However this is quality glass, would/will need to buy again!

MR
05/05/2020
Michael R.
United States United States
downstem replacement

Excellent quality in their products and only took a few days to arrive.

JJ
02/08/2020
John J.
United States United States
Great product great price

Sizing guide got a perfect fit, price was low quality is high!