Weather stripping on bottom edge of windows are all dried out from weather, time, UV, heat. I believe these to be one of the Manufacturers listed above - Survivor Door & Window Systems - Series 3000, 4000, 5000, 7000
or
Metal Industries, Inc of CA. - Prodigy Vinyl Replacement Windows - 1750 Series
Not sure which one! Have brochures on both no receipts, or markings on Windows found.
Sorry I couldn't pull weatherstripping out without destroying it - just breaks into pieces. Have 5 Windows - Weatherstrip - 32" long