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　　For sealing the scupper holes for spilled oil or polluted liquids. Easy to use, insert plug in the drain hole and tighten the handle until a slight resistance is felt, the rubber plug will be expanded and held firmly in place. Rubber parts are made of oil resistant rubber (CR). Seven types are available according to the pipe size. Specify the applicable drain pipe diameter when ordering, refering to the plug application list.​

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