| 摘要 |
A closure for a plumbing cleanout includes a riser pipe having an interior surface defining an interior bore. A cylindrical plug is provided having a first end, a second end, and an exterior surface. A peripheral flange is positioned at the second end of the cylindrical plug which is adapted to limit the distance the first end of the cylindrical plug can be inserted into the interior bore of the riser pipe. Seals are provided for sealing fluids within the riser pipe. Stops are provided for limiting axial movement of the cylindrical plug relative to the riser pipe.
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