channel balances

A home owner from Florida says:
I don't see any 2900 series listed. I purchased several 2950 followed by FY channels a few years ago, did the company change the numbering system, and if so what is the new number for 2950 FY?
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Tom from SWISCO responded:
The numbers you're giving us are just the stamps, which have no relation to the Series. Stamps just let us know how strong the spring is. I recommend that you look at our Channel Balance Home Page and follow the steps in order to find the Series that best matches what you have.
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