Mechanical Expansion Plug, Snap-Tite, Nominal Size 2 In., Min. Dia. 1.95, Max. Diameter 2.184, Max. Back Pressure 5 ft. of Head, Max. Back Pressure 5 ft. of Head, Material of Construction Brass, Zinc Plated Steel, Neoprene Rubber, For Use In Low Pressure seal in Circular Openings Package of 4.
eBay