• "Bubble-Bubba" Diffuser Bumpers - {10 pack}

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    American Made Buna 70 O Rings

    Will protect the air diffuser stone from abrasives or protect your tank liner.

    They fit snugly on the diffuser, we recommend 2 per diffuser.

    Diffuser Bumpers increase air stone efficiency by providing

    20% additional bubble area {The underside of the diffuser}.