Will it fit & work

A quick learner from Guam 96915 says:
I have 18 pound window, max travel 28 1/4 inches, 2ea 5/8 inch wide coil springs. Coil spring accumulator is 1 3/8 inch square-looking plastic cage 5/8 inch wide anchored to top of moving window with a #6 x 1/2 inch self-tapping screw and flat 1/2 x 1 1/2 metal tongue.

Can I use your Series 152 as replacement ??? 1/2 vs 5/8 W.
Do you have accumulators similar to mine ???
Will you ship USPS "If it Fits it Ships" ???

Thanks for your support.
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Paul from SWISCO responded:
Thanks for posting, Al. I'm not sure exactly what you have. Could you send me a few pictures of your current balance set up so that I can confirm the Series 152 or suggest a better alternative?
A quick learner from Guam says:
Attached is sketch of components.
User submitted a diagram of window hardware.
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Paul from SWISCO responded:
Ah, I see. I think I've seen this before. This is kind of a weird setup and we don't have an exact match. If I remember correctly, the housing is a die cast metal with a 5/8" spring. I believe we were able to use the S152-9 coil spring as a substitute. Check it out and see what you think.
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