Product review (5 stars): A few notes on installation
Note that if your old setup simply has the outdoor vent pipe sticking out into the house, you will need to cut it to length.  You will have to measure fairly close as usually the outdoor vent plate (the louvered thing) relies on several tabs that snap into square holes on the pipe.  The inside end just fits over the flange on the dryer doc.  A pair of tin snips will do the job nicely.  Also, if the inside hole is sloppy large, you will have to put in a new piece of drywall or plywood to attach the dock to the wall.  Mine had a huge hole so I just used a piece of plywood, measured to reach the wall studs.  Cut a hole in the plywood and mount the dock to it.  So, depending on your situation, you may have a little work to do.  If your drywall is in good shape you could use some mollies.  I paired this with the "Snap to Vent 90" on the dryer end.  The Snap to Vent worked well for that application but I did not want to use it (straight end version) for the wall end because I felt the Dryer Dock was a neater and more solid option on the wall end of things.  Also, you will need to clamp the hose to the dock plastic.  I used a regular clamp but I also drilled a hole through the clamp into the plastic of the dock collar and put in a zip screw to keep it nice and secure.  Use a nut driver to secure the zip screw.  I am really happy to have this setup nice and secure and easy to maintain.