Which water filler cap?

[rockhopper353]

Purchased this Rheinland water filler cap for my dethleffs trend t7057. Looks like it's the wrong part to me as it is a fair bit bigger than the locking cap and barely fits into the space. Can anyone confirm please.

Is the heos cap the same size or would that be the correct one for my model?

 

[David and Sally]

Does it work ok?

 

[rockhopper353]

Not tried it yet as the fit just doesn't appear right at all, just seems to big, didn't want to soil it so I can return it. It's a different size altogether to the locking cap.

 

[Gellyneck]

From memory there are two main different diameters for fillers. I think our Heos came with an adapter you need to change over if you have the other size.

 

[Gaston aires]

Paul and Chrissy sell them in classified section.