Casita Travel Trailers Bargman 7-way Plug Wiring Diagram After a great deal of experimenting we still believe our way of doing the vent We travel with the infamous favorite, the RHINOFLEX 15′ sewer hose that so .. This rubber plug very snugly fits the opening of many Casita electrical .. 7 Way Plug is backordered and will ship as soon as it is back in stock.
Electrical Wiring 6 / 7-Way Connectors Products Vehicle / Trailer Wiring 6 / 7-Way Connectors. The 7-Way Trailer Plug is a round 2″ diameter connector that allows an additional pin for an auxiliary volt power or backup lights. It is usually used for towing a heavy-duty landscaping trailer, car trailer, boat trailer, horse trailer, travel trailer, construction trailer, and larger trailers.