Easi Plumb 4" Rubber Plug Single Inlet - 32mm / 40mm | EP100RP2 Made from high-quality rubber Easy to install Black color Easi Plumb 4" Rubber Plug Single Inlet - 32mm / 40mm | EP100RP2 These plugs are made from EPDM quality rubber. Suitable for both external and internal use, they are designed to fit inside a 110mm pipe. They are supplied with either double or single closed conical-shaped inlets, so that they may be cut to size on-site and will accept 32mm and or 40mm waste pipes. Features Suitable for both external and internal use Supplied with either double or single closed conical-shaped inlets. Cut to size on-site and will accept 32mm and or 40mm waste pipes.