channel balance with 15-193 and 19-038

A home owner from seattle says:
The metal portion measures 29 inches. I attached some photos.
I think the bottom shoe is 15-193 and the top is 19-038.
The part I cannot figure out is the channel balance itself. The ones on your web site all have shoes mounted, but not the shoes I need.
The window sash itself weights 17 lbs.

I need 6 of these balances for 3 windows.
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Tom from SWISCO responded:

WE can supply this balance as a custom order, since you don't have a combination of nylon fittings that match any of our stock products. I'll email you an order link and price quote now for 6 of these balances. They will be 29" long and rated for a 17 pound sash.

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How to Replace a Channel Balance Attachment
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