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Plastic 3-piece fermentation lock. Can be used with water to act as an airlock for protecting your mash from oxygen and infection, or with activated carbon to reduce the odor from fermentation.

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  • 5
    Good Airlock!

    Posted by Dano on Nov 6th 2018

    Works very well, and is cheaply priced. What’s not to love?

  • 5
    As advertised

    Posted by Dave P on Apr 14th 2018

    Thank you for your great customer service

  • 5
    Great Price

    Posted by BayouRuler on Jun 15th 2010

    These air locks are made of quality material and the price is unbeatable! Quality product and a great price!!

  • 4

    Posted by chris r on Jul 6th 2008

    ez ,cheap, and saves you the hassle of the old hose syle i always used.

  • 5

    Posted by Carolina Shining on Jan 21st 2007

    its an airlock. it does what an airlock is supposed to do. however, the price is unbeatable compared to what i've come across.