Replacement counterbalance

A quick learner from Ewing nj says:
September 30, 2017
Hi I need a part to replace Andersen window counterbalanced with part number bp7 q12r 3-85. I also need the left side as well. Additional code 11600-17 is on it. Please help?
andersen balance
A quick learner from Ewing nj says:
September 30, 2017
The balance on the other side of the same window had a different model number, it is p74 12l 2-85.
Correction on the first post, the model for the first side is bp7 12r 3-85. Please advise on the replacement model for these?
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Tom from SWISCO responded:
October 5, 2017
The balance stamped "P74 12L 2-85" is our 24-L8-1227 and the one marked "BP7 12R 3-85" is 24-R12-827. They should work for you.
Andersen Sash Balance, L8 1227
Andersen Sash Balance, L8 1227
24-L8-1227
$54.20
Andersen Sash Balance, R12 827
Andersen Sash Balance, R12 827
24-R12-827
$54.20
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