BD37 1227 10 88 Andersen Balance

A handy person from Columbus Grove, Ohio says:
August 25, 2022
ndersen dbl. hung and each sash weighs 20 lb. ea., the balancers have markings that include (11600-A3) (11600-17) and (BD37 1227 10 88) what balancers should I buy?
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Tom from SWISCO responded:
August 29, 2022

Hello! Based on your old stamp of 1227, I recommend our 24-1231 Andersen sash balance. I am confident that this is what you need, but please let me know if you had any questions. 
Andersen Sash Balance, 1226, 1227, 1231
Andersen Sash Balance, 1226, 1227, 1231
24-1231
$54.20
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