Ocean Breeze portable AC bought in 2018 Works great, but we had mini-split installed so no longer need it.
I've never used it with the duct option, just ductless in the window. Images have measuring tape, I won't answer any requests for further measurements or images unless I've egregiously forgotten something. Grey side sticker has model, BTUs, etc.
Price is $100 cash firm, you'll need to pick it up yourself. Similar models are $300-400 new.
Location is near intersection of Park Ave and Warwick Ave in Cranston, Egdewood area.