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Fuel Vent Hole Size-gctid557765

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    Fuel Vent Hole Size-gctid557765

    I am getting ready to replace the fuel vents on my 2000 2855 ciera. The vents on there now are simple vents with splash guards but I don't know the hole diameter and I want to order the Attwood P-trap but the require a 3/4" hole and was wondering if anyone knows the size? I only post on here because I am nowhere near my boat and wanted to ordered them before I return.

    Thank you in advance

    Vent hose is 5/8" ID. The OD of vent fitting (threaded area) will be at least 3/4"

    Just did 2 on my boat, fuel and water tank vents.

    Here's the original.

    Here's the new.

    Edmonds, WA
    "THE FIX"
    '93 2556 5.7 Bravo II 2.0:1 18 1/4x19 P
    (.030 over-Vortec top end-part closed cooled)
    The rebuild of my 2556
    Misc. projects thread