Channel Balance ID

A quick learner says:
February 3, 2022
29", 2820Z, maybe in the 1983 when the house was built
2 counts for one window
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Bob from SWISCO responded:
February 3, 2022

See the S351-29 or S390-29. The only difference between these two balances is the depth of the bottom nylon shoe, or the 'heel-to-toe' measurement, so compare both with your old hardware to see what matches best. For a stamp choose 2820. 

Comparison of the S351 and S390 balance shoes.
Comparison of the S351 and S390 balance shoes.
29" Series 351 Channel Balance
29" Series 351 Channel Balance
S351-29
$11.10
29" Series 390 Channel Balance
29" Series 390 Channel Balance
S390-29
$11.10
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