Extended-Travel Channel Balance Quote

A quick learner says:
27 7/8 in long
Stamp is C 27
Don't know the manufacturer, but windows were installed in 1983.
I need 4 balances.
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Tom from SWISCO responded:

This is not an extended-travel balance. This just looks like our standard Series 350, but you should double check the length of the metal channel. It should be 28" long based on your old stamp.

A quick learner says:
Thank you. The channel is 28" long. Looks like I can just order those directly online, right?
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Tom from SWISCO responded:

Yes! All orders can be placed on our site at your convenience.

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