By DuraVent

    DuraVent Type B Oval Gas Vent Firestop

    $38.75
    $38.75
    Diameter: 4 inch
    Style: Oval Bvent Firestop Spacer
    $38.75
    $38.75

    DuraVent Type B Oval Gas Vent firestop in 4–6 inch diameters. Each option is a DuraVent factory part number.

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