The coupler has two male RF aerial plugs for connecting two female sockets. Can also be used to convert a female socket connector to a male plug.
2x Right Angle 90 Degree F Connector Female to Coax TV Male Aerial Adapter Plug
2 x 90 Degree Right Angled Male Aerial Coax Plug Adaptor Convert Cable Gold Plat
2x Right Angle 90 Degree F Connector Female to Coax TV Femal Aerial Adapter Plug
TV Aerial Adapter - TV Coaxial To F Adapter F Plug Male to TV Coaxial Male
