SWISCO - The Replacement Hardware Authority

Caldwell Window Balances--not sure of Series

A home owner from Vancouver, WA says:
I need to replace some window balances which appear to be series 380 (w/#19-005 bottom clip) or 385 (w/#19-004 bottom clip) but your website depicts these clips identically. How do I determine the correct clip? Inside dimension of my channel is 1/2", wing to wing width of clip is 15/16" and height of clip is 1-1/8". The existing balance is a Caldwell "20 4 JQ"

Thanks, Bob
A customer submitted image of channel balance attachments.
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Tom from SWISCO responded:
Thanks for posting! The biggest difference between the 15-004 and 15-005 channel balance shoes can be found in their depths. Please take a look at their dimensions and note their depths. As you can see, they are 1-3/32" deep and 1" deep, respectively. Which one more closely matches your own bottom attachment?
A home owner from Vancouver, WA says:
Tom, thanks for your quick response. Mine is 1-3/32" so i'll order the series 385.

Thanks, Bob
A home owner from Vancouver, WA says:
Tom, a follow up on our prior discussion......when I got ready to order the 385 series balances, I notice there are options but I don't see anything on your site defining what the options are. Can you explain the options or point me to the location that defines them?

Bob
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Tom from SWISCO responded:
Thanks for getting back to us, Bob! I'm glad to hear that our Series 385 matches. Now, the stamp options are indicative of your balance's strength--that is, how heavy a sash they can support.

I see that your balance is stamped with "20 4." I would recommend the stamp 2040 for that. This can support a window sash weight range of 15 through 23 pounds. Does your sash fall within that weight range?

Please keep in mind that the weight range information is based on 2 balances per sash. Balances are designed assuming friction in the jamb weather-strip will carry a portion of the sash weight. Suggested sash weights are approximate.
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