Nearly all window air conditioners are made for vertically sliding windows. I made a new window panel to fit a window air conditioner into a casement window.
Testing the window air conditioner:
   • Window air conditioner efficiency test  

Amazon purchase link: https://amzn.to/3NnDD3y
Amazon discount code: 50AC002 (Valid thu May 22)

Also available on Dreo's website:
https://dreo.com/products/dreo-arctic...