Daisypower Dryer Vent Window Kit, Adjustable Window Vent Kit with Outdoor Dryer Vent Cover,4 Inch Hood for Exhaust Ventilation

fwiw, I also run a 4" duct out the house through a standard external dryer vent with damper assisted by an inline fan. Works really well I haven't tried the window mount but this is sort of what I would think is roughly what you would want. https://a.co/d/0aUHcKOo