WindowPoppers make it easy to open sticky Airstream trailer windows from the inside. They come in sets of four to accommodate the window configurations of most Airstream trailers. Additional single WindowPoppers are available for those extra windows. Each set or single WindowPopper includes an instruction sheet that describes the installation process in detail. Installation takes about five minutes per window. WindowPoppers mount in the inside window frame and do not alter the structural or weather-proof integrity of your Airstream.
The large forward and rear windows only need one WindowPopper installed near the center of the window (but two can be used).