I have some older Peachtree sliding screen doors that need new screen. The existing spline varies frim .190 to .210 round vinyl but the origonal (very old)is 11/32" flat. Simular to your
55-109 but without the "ears". Its just a flat piece of vinyl that fits into the square slot. The round versions do not hold near as well as the flat. I have attached several pics.
Can I use your
55-109 in place of the flat version?