Scepter Type LB Access Fittings are available in sizes 1/2" to 4", they're CSA certified and UL listed. Manufactured with threaded brass screws and inserts, Scepter access fittings feature flexible PVC gaskets allowing removal of the covers as often as needed without wear or cracking. 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 CSA certified and UL listed Fully assembled with no loose or missing parts Made from high impact PVC Threaded brass screws and inserts