Glazing Bead for a Certainteed window

Thanks for reaching out to us, Tim. It's hard to make out the original shape of this glazing bead since it's damaged. Would it be possible for us to see a photo of an undamaged end profile? 

Thank you for clarifying that, Tim! I don't recognize this bead but I'm going to have one of our senior experts look and see if they could recommend a replacement for you. We'll reach out to you as soon as more information is available.

I'm afraid we haven't come across this style of glazing from CertainTeed. I recommend you have a look at our 55-213 and 55-071 as possible replacements. I can't promise they will work but review the specifications and see what you think.