Scepter PVC Octagonal Boxes are shipped complete with cover, gasket, 4 reducing bushings (3/4" x 1/2"), and 4 sealing caps to be installed from inside box to seal off unused entry hubs. Made from durable PVC, Scepter Octagonal Boxes are impact and chemical resistant. Utilities cable communications residential airports subways bridges & tunnels mines marinas water/sewage treatment plants pulp & paper industries street & highway lighting food processing plants agricultural parking garages car washes fish plants steel mills Sealing caps can be installed to seal off unused entry hubs Rubber gasket provides a watertight seal Reducer bushings offer flexibility on the jobsite