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    GRAV Adjustable Downstem - 420 Science - The most trusted online smoke shop.
    GRAV Adjustable Downstem - 420 Science - The most trusted online smoke shop.
    GRAV Adjustable Downstem - 420 Science - The most trusted online smoke shop.
    GRAV Adjustable Downstem - 420 Science - The most trusted online smoke shop.
    Customer Reviews
    4.3 Based on 3 Reviews
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    TG
    04/16/2020
    Tony G.
    United States United States
    Does it’s job.

    I broke the original down stem In my 12” grav bong I got from here and the exact size replacement isn’t on 420 science. This one works alright but not as good as the original. Plugs up often so keep it clean everyday!

    MG
    05/21/2018
    matt g.
    United States
    Great quality , decent design with minor change

    Clogs easy even in Rez block made minor adjustment of the smaller half sanded off the half plug

    BH
    04/02/2018
    Briana H.
    United States
    It works great!!

    It works great!!