Can you help my identify this K 2240 balance?

A quick learner from FL says:
May 9, 2019
Could you please help me to identify this window balance.It has a letter and number K 2240,length 23inches,witdh 1/2. Thank you
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Bob from SWISCO responded:
May 9, 2019

Thanks for posting. See either our S380-23 or S385-23 Channel Balance. The only difference between these two balances is the 'depth' of the bottom nylon shoe, so compare with your old balance to see what matches best. You will need a stamp option of 2240. 
23" Series 380 Channel Balance
23" Series 380 Channel Balance
S380-23
$9.59
23" Series 385 Channel Balance
23" Series 385 Channel Balance
S385-23
$9.59
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