SWISCO - The Replacement Hardware Authority

Window channel balance

A home owner from Seattle, WA says:
"20 4 HS Caldwell" stamped on balance

channel length 21"(metal-metal)

channel width 1/2" (9/16")
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 home owner from Seattle, WA says:
Thank you. I was in the same boat until you revealed the above dimensions. Mine is 1 3/32" - the 15-004, so I need Series 385. Correct?
Profile picture of Tom
Tom from SWISCO responded:
Yup! Sounds good to me. The rest is easy. All you need to do now is select your length and option.
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