Upper and lower guides for aluminum frame windows

A home owner from Diamond Springs says:
The nylon window guides on my aluminum frame windows are probably vintage late 1970s. The upper guides have 2 wings, the lower guides have 1 wing. So far I haven't found anything like them. Would be nice to find a suitable replacement for them.
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Paul from SWISCO responded:

Hello there,

You might be able to substitute our 87-050 nylon guide for yours, but compare our dimensions to yours and see if this matches what you need.

A home owner from Diamond Springs says:
Pretty close. Might work. I will get a few and try them.
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Paul from SWISCO responded:

You can see our return policy here , just in case. Good luck with your repair! 

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