It's tough to tell what you have from the photos you've sent us. The end profile in your last picture helps, but your sample is a little smushed so it's not 100% representative of its original shape.
Start by looking at our 55-195. This looks similar, but you'll have to try to get an undamaged sample to confirm that the dimensions and style match.
As for your follow up questions, I'll do my best to answer one at a time.
- I'm not sure if I understand this question, exactly. I'm going to post a video at the end of this post that explains how to replace glazing bead. Hopefully that clarifies this point for you.
- Some people have been known to use caulk, but it isn't necessary. It also makes it harder to replace in the future. The video show clarify for you how you can replace your glazing bead.
- The black seal between your glass panes is a kind of rubbery substance that keeps the air sealed. You don't need to replace that unless your glass is fogging; if it is fogging, you need to take the window to a glass shop to have them replace it. It's not something you can do yourself.
- I don't understand this question, either. Can you you clarify?
I mentioned a tutorial video before and I think it will be a big help. You can view it below.
