What window balance do I have?

A quick learner says:
Do you have these channel balancers ?
User submitted photos of a window balance.
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Tom from SWISCO responded:
Thanks for posting! I recognize this balance. We should be able to custom make it for you. To begin, check out this Custom Channel Balance Order Form that I've started for you. This is for a 21" long channel balance with a 15-041 bottom attachment, a 19-015 top attachment, and a 2030 stamp option. Review this information and, if you think it checks out, fill out and submit the rest of the information. One of our representatives will get back to you shortly thereafter with a price quote.
How to Replace a Channel Balance Attachment
How to Replace a Channel Balance Attachment
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