ProPlus plug 13-pin Used on trailers and caravans equipped with a Jaeger connection for connection to the towing vehicle. Made of high-quality PVC, which makes it not only strong and durable, but also easy to keep clean. designed for a simple and reliable connection. So that you can always go out with your trailer without any problems. Colour: black. Jaeger 13 pin plug The Jaeger 13 pin plug is used on trailers and caravans that are equipped with a Jaeger connection for connection to the towing vehicle. Made of high-quality PVC, which makes it not only strong and durable, but also easy to keep clean. designed for a simple and reliable connection. So that you can always hit the road with your trailer without any problems.