Shrouded connectors provide better protection against weather, dirt and moisture. Unshrouded connectors are found on most OEM trailers. The plugs are interchangeable and can connect together.
Brand
Dometic / Sierra Switches
Connector
4 Pole
Description
Trailer Side
Lead
4-12"
Shrouded
No
Tc44054 Pigtail 1 Ft Male | Dometic / Sierra Switches