There are two types of stays used on the majority of Eriba's. One has a slide out tube affair and a thumbscrew knob to hold in place, whilst the other has pre-set click stops. Both designs are generic caravan parts and you should be able to source them from any good caravan dealers. I would advise this hands on approach so you can do a direct comparison. I have in the past bought over the internet and whilst the stays are not supposed to be adjustable for fit, I found out the hard way that they are, but it is not a job I want to repeat.

Colin

Tsk.

See how not to do it by adding "window auto stays" to the search engine.
I ordered the wrong type.
Randa