Airstream Main Door Window Clear Glass 371271-C

371271-C Airstream Main Door Window Clear Glass. This window is for the main door in late 1980's to 1993  Airstream trailers. It has clear glass. The outside frame measurements are 19 1/16 " W X 22 1/2 " T. The glass only measurements are 16 3/16 " W X 19 5/8" T. The outside flange(hole size) measurements are 17 1/2 " W X 21 1/8 " T.  Please check your measurements. See pictures below.