Mechanical Expansion Plug, Thumb Nut, Nominal Size (In.) 9/16, Min. Dia. (In.) 0.534, Max. Dia. (In.) 0.6075, Max. Back Air Pressure (PSI) 10, Max. Back Pressure (Ft. of Head) 24, Material of Construction Aluminum, Stainless Steel, Neoprene Rubber, For Use In Low Pressure seal in circular openings Package of 6.
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