Hi,
There is a kit on ebay developed by myself that you can fix the small plastic struts for the 200-400 mm bunk window available on ebay. Parts to refurb 3 windows (from personal experience there generally disassembled to make work).
https://www.ebay.com.au/itm/224523201964Dometic window refurb kit
There is a kit on ebay developed by myself that you can fix the small plastic struts for the 200-400 mm bunk window available on ebay. Parts to refurb 3 windows (from personal experience there generally disassembled to make work).
https://www.ebay.com.au/itm/224523201964Dometic window refurb kit