SWISCO - The Replacement Hardware Authority

Caldwell Series 86 Block & Tackle Balance Replacement needed

A landlord from Seattle, WA says:
Hi I am in need of two Replacment Caldwell Series 86 Block & Tackle Balance Channel. The lenghth is 21 inches. Please advise...

Thanks,
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Hey, thanks for posting. I've narrowed this down to two possible channel balance Series: either our Series 380 or our Series 385 balances.

Now, as you can see, there is only one difference between these two Series, and that is their bottom shoe. The Series 380 uses the 15-005 while the Series 385 uses the 15-004. I can't quite tell what you have based on your pictures, though. Please carefully compare their dimensions to your own hardware and see which is a better match.
15-004 and 15-005
A landlord from Seattle, WA says:
Thank you sir. I think I need the series 380. Would you kindly advise which Stamp Option I should use?

Thanks again...
Profile picture of Tom
Tom from SWISCO responded:
It looks like your have a stamp that reads 20 9, which does not correspond to any of our options. You will have to weigh your sash and cross reference the weight to the option chart found on the page for your balance of choice.
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