Product review (4 stars): No frills, but works well
This is not a slick "plug in kit" type of thing. Rather, it's a great starting point for something to work with your own specific application. I switched the inner sleeve around so that it has become a "U" bend, venting the air forward into a hose that runs down to a 90-degree fitting on the wall beside the dryer. I needed to trim the metal (easy with tin snips), and tape up the seams with foil tape, and everything works fine.