You must have already been on the road in the rain with your Grand California? Then you know the problem, you open the sliding door and already the water runs from the roof through the open door onto the kitchen or the entrance. Do you still have an awning now? Then the simple but fine Thule rubber seal is the solution to your problem. This can be retracted into the awning without, well more or less effort. This closes the gap between the roof and the awning, the effect is simple, the water now stays on the lip and no longer runs down.
In this picture, which we took when washing the Cali, you can see super, the water remains on the lip and no longer runs down. Thus, the entrance and the kitchen remains dry.
The rubber is available from various manufacturers, but none could convince us, whether from Reimo or Konsortien. Finally we bought the original Thule rubber, it is available by the meter. You will need three meters of rubber for the awning on the GC600 and 3.5 meters for the GC680. After a few misdeliveries, we got an original one at Obelink. Unfortunately, it seems to be fashionable to sell cheap rubbers as original goods. Make sure, if you already pay 50 euros for it, to get a reasonable from Thule. The original rubber has a width of 8 centimeters, which is important, otherwise it will not seal properly.