Channel balance

A quick learner from Rochester Hills Mi. says:
I have a channel balance that is 1/2" inch wide and is 29" inches long. There is a stamping on it that reads 2840 c. I have ordered from you a couple years ago and this is the same part just a shorter length. The parts you sent me before had a19-038 top and a 15-193 bottom.
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Tom from SWISCO responded:

Hello! This setup looks to be the same as the one you bought before, other than size. We can definitely supply this as a custom order. Can you just tell me how many you need?

A quick learner from Rochester Hills Mi. says:
I need 2 of them. I believe you recommend replacing both sides so that one side is not doing all the work.
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Tom from SWISCO responded:

That's exactly right! I'll shoot over a purchase link right now. You can use that to place your order, as before.

How to Replace a Channel Balance Attachment
How to Replace a Channel Balance Attachment
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