Big Mouth Plugs Are Available In Several Sizes And Styles For Sewer Testing Applications.
Big Mouth Plugs are made with a lightweight aluminum bypass and removable tire valve for easy replacement. Original Big Mouth Plugs are equipped with a removable 3/8" eye bolt for lifting and lowering with a poly-lift line. Multi-Size Big Mouth Plugs feature an interchangeable bypass flange, allowing the same plug to be used for different applications.
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