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  • 29MM HARKEN ZIRCON BLOCKS

    HARKEN
    $78.04 - $193.24
    $78.04 - $193.24
    $78.04 - $193.24
    $78.04
    In stock

    Zircon blocks are the most efficient small boat blocks Harken has ever made. At the core of Zircon performance are industrial ceramic ball bearings...

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  • 57MM HARKEN ZIRCON BLOCKS

    HARKEN
    $123.45 - $268.54
    $123.45 - $268.54
    $123.45 - $268.54
    $123.45
    In stock

    Zircon blocks are the most efficient small boat blocks Harken has ever made. At the core of Zircon performance are industrial ceramic ball bearings...

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  • 40MM HARKEN ZIRCON BLOCKS

    HARKEN
    $110.46 - $199.97
    $110.46 - $199.97
    $110.46 - $199.97
    $110.46
    In stock

    Zircon blocks are the most efficient small boat blocks Harken has ever made. At the core of Zircon performance are industrial ceramic ball bearings...

    View full details