Screen Spline for Anderson Screens

A quick learner from Jamestown RI says:
Hello, I've attached three photos of screens from my 1974 vintage Anderson casement windows. The screen is held in place with metal spline. The width of the frames, both the same for both sizes of screens, is 0.75 inches. What size foam or plastic spline do you recommend if I am installing fiberglass replacement screen?

I have a spline tool I got at Home Depot and used with the 0.125 in diameter spline I bought to use with fiberglass screen on other than Anderson screens. Can I use that tool with the spline you recommend for Anderson screens or do I need to buy a new tool just for the Anderson screens? Thanks in advance for your reply!

Jim in Jamestown
User submitted photos of screen spline.
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Paul from SWISCO responded:
Hey, Jim. We recommend our 59-250 screen spline for Andersen screens, but we find that the aluminum wire holds in better than fiberglass in these older frames. The screen rolling tool you have should be fine to use.
A quick learner from Jamestown RI says:
Thanks so much for the speedy reply! AND, I will us ALUMINUM screen as you recommend. I can see how it would be more likely to stay in place rather than the fiberglass variety. I'll send in my order tomorrow for the spline, and maybe buy that superfine screen, too, for better visibility through these two windows.
Thanks again!
Profile picture of Paul
Paul from SWISCO responded:
Not a problem! Let us know if you need anything else, Jim. I'd be happy to help.
A home owner from So Cal says:
I noticed your post and I'm in the process of replacing my Andersen screens also... my new dog destroyed all the screens in front and I've replaced them using the 0.25 foam as recommended and the screen is nice and firm and holding well.
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