100mm exhaust pipe window adapter

This is an exhaust pipe adapter to fit it neatly into the gap in a window. The piping is 100mm. I used this for the 3D printer box that I built.

More details here: http://www.igorkromin.net/index.php/2013/05/26/a-clear-acrylic-box-for-the-portabee-3d-printer-part-1-making-the-box/