An extra heavy "O" ring to assure watertight fit. To be installed in areas
where internal pressure (oil-canning) is not present. Ideal for inspection
compartments, for clean out or access to shut off valves, back-up fasteners.
ID: 6-3/16"
OD: 8-1/8"
Cut Out: 6-1/2"
Color: Neutral
Center: Diamond
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ALL products we sell are factory new and come with the full Manufacturers Warranty!