Airstream Window glass and sash frames. All sizes still available. Window hardware for Trailers built from 1975 to 1993. These windows are very similar to previous generation. The main difference is that Airstream introduce deluxe flat shape push arm instead of rod style. This concept last for several production years, before older style was used again. Double pane windows are no longer produced do to complexity and leaks between pains and can be replaced with the same size single pane.