Help with Window screen retainer

A home owner from Lehigh Acres Fl says:
I'm trying to find a source for these two screen retainers. I can not find the name of the window manufacturer. They are high impact windows and I think they are made by Assura.
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Thumbnail of the uploaded file named Screen retainer top
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Casey from SWISCO responded:

Hello,

Unfortunately, we do not carry an exact replacement for the screen retainer shown in your photo but the 70-176 would be worth considering since it is quite versatile. We can't make any guarantees but this would be our best replacement option. Review the specifications below and see what you think. Thanks for posting! 

Dimensions for 70-176
Dimensions for 70-176

A home owner from Lehigh Acres Fl says:
I looked at that, but what keeps it in place?
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Casey from SWISCO responded:

The 70-176 clips directly onto the frame. If you don't think that your window would accommodate this kind of retainer, we also offer the 70-160 thumbturn used with the 70-071 clip that we sometimes recommend for old-style screen retainers. Take a look and see what you think. 

Dimensions for 70-071
Dimensions for 70-071

Profile view of 70-071
Profile view of 70-071

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