Channel balance

A quick learner from Seattle thr says:
What is the between the 15
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
I'm sorry, but your post got cut off. I think I know what you're asking, though. Did you want to know the difference between the 15-004 and 15-005? If so, the only difference is size. We have detailed dimensions for both pieces on their respective store page. I highly recommend going over these dimensions and measuring your own part to confirm the better match. The difference is subtle, but important. We cannot eyeball it based on a picture, but once you measure your shoe you should be able to determine what's closer. Also make sure to account for friction wear when you measure; in other words, your shoe may be slightly smaller than it may have been.
How to Replace a Channel Balance Attachment
How to Replace a Channel Balance Attachment
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