Vinyl glazing bead

Hi there, thanks for reaching out to us. We should be able to help. While I'm not familiar with Hallmark windows in particular, I've seen your specific kind of glazing a few times in the past. The bad news is that it's not made anymore. The good news is that our 55-029 has been used by other customers as a substitute. It works in more or less the same way as your original.

The only thing I'm not sure about is size. Our 55-029 is 1/2" x 1/2". Look over our dimensions and let me know if you think you could get this to work on your window. You can also order a sample of it here if you wanted to try it out first. 

Profile diagram of 55-029