King Plug (Resident Evil 2)

A plug of some sort in the shape of a king.

Image of King Plug
One of four chess themed plugs acquired by Leon, designed in the shape of a King chess piece.

In conjunction with the Bishop Plug, Knight Plug and the Rook Plug, use it on the panel in the Septic Pool Walkway of the Sewage Disposal in order to gain access to the Filtering Room.