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    Customer Reviews
    4.7 Based on 16 Reviews
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    Michael J.
    United States United States
    A little too tall

    Works great as advertised but just a bit too tall

    Michael Johnson verified customer review of GRAV Carbon Filter Adaptor
    United States United States
    Great Addition

    As someone who's mostly switched over to concentrates and vaporizers but still enjoys a good flower rip, I was looking for basically anything that'd filter out most of the junk in smoke. Ended up with one of those percolating ashcatchers (which also work great) but was also interesting in the carbon filter. Overall, pretty solid. Came prefilled with charcoal and I just refill it from a giant tub meant for aquariums. Noticeably cuts down on that bong water smell that generally lingers, at the cost of THC. Make no mistake, you're losing a bit of your material as it passes through, but frankly it's pretty negligible. Not really sure what I'd do to improve it. The glass plug is kinda chincy but has zero effect on the product. If anything, I wouldn't mind seeing a half sized version for smaller pieces, but I'm weird and own tiny glass.

    Jessie L.
    United States United States

    Sick science!!!!!!

    Jeffery K.
    United States United States
    Get this quick

    Wow just wow. So smooth. Pipe stays clean so does the lungs. Make sure to run water through the carbon first before use for best results.