Confirm window channel part

A home owner from Redmond, Wa says:
Hi, Just wanted to confirm these are a match S372-25 . These are from my 1983 weathervane (I believe) windows. Sash weight is 16.5 lbs so stamp option would be 2430? They are 25 inches long (metal section).

Thx, Brad
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Casey from SWISCO responded:

Hi Brad,

Your end attachments appear to match the 15-193 bottom and 19-038 top fittings. None of our stock balances use these fittings but we would be happy to have them custom-made for you. We just sent over an order link and price quote for you to review. Thank you!

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