5#23 8-78 Spring Sash Balance

A home owner from Burke, VA says:
May 17, 2018
Need to replace some old balances (cord snapped)--looks like the photos off the website...

Markings are hard to make out:

Andersen Corps

135 5#23 8-78
A home owner from Burke, VA says:
May 17, 2018
windows are approx 31.5" x 19.5"
Thumbnail of the uploaded file named Spring Sash Balance.jpg
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Casey from SWISCO responded:
May 18, 2018

Hello,

Based on your stamp number of 5#23, you can replace your old part with our 24-531 sash balance. Thank you!
Andersen Sash Balance, 519, 523, 525, 527, 531
Andersen Sash Balance, 519, 523, 525, 527, 531
24-531
$54.20
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