Window master aluminum window channel balance

A home owner from San Diego says:
Do you have this part number 2110? It is 22" long without the top and bottom pieces.

I need four of them.

Thanks.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
I believe our S385-22 is a good balance to look at. Look it over and see if it's a good match. Keep in mind 2110 isn't a part number, but just a stamp indicative of the spring strength calibration.
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