Product review (5 stars): There's a lot of parts here you won't need but ...
There's a lot of parts here you won't need but then it's made to have the vent come out of either side or the bottom. Who knew you could vent a dryer out the bottom? lol You could buy most of the individual pieces at any hardware store - it's just standard galvanized ducting - but this saves the hassle of trying to get everything the correct length.