| Drain Seals Fits | 18 in Dia. x 18 in Dia. 24 in Dia. x 24 in Dia. 12 in Dia. 20 in Dia. 458 mm Dia. x 458 mm Dia. 610 mm Dia. x 610 mm Dia. 305 mm Dia. 508 mm Dia. |
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| U.S. Patent No. | 6530722 |
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| Drain Seals Fits | 18 in Dia. x 18 in Dia. 24 in Dia. x 24 in Dia. 12 in Dia. 20 in Dia. 458 mm Dia. x 458 mm Dia. 610 mm Dia. x 610 mm Dia. 305 mm Dia. 508 mm Dia. |
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| U.S. Patent No. | 6530722 |
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