Metal window channel

A handy person from Florida says:
May 14, 2019
The channel is 30 inches long and it has a number on it that does not match any of you part numbers. 2930 is the number.
Could you please let me know what part number to order. Thanks
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Bob from SWISCO responded:
May 15, 2019

Thanks for posting. It's a little difficult for me to make out your balance's end attachments in this photo, but I believe this might be our S351-30 or S390-30. Go over the pictures and specifications for both balances and let us know if your balance differs in any way. The only difference between the Series 351 and Series 390 themselves is the 'depth' of the bottom nylon shoe, so compare with your old balance to see what is the better match. You will need a stamp option of 2930. Let us know if you have any questions. 
30" Series 351 Channel Balance
30" Series 351 Channel Balance
S351-30
$11.52
30" Series 390 Channel Balance
30" Series 390 Channel Balance
S390-30
$11.30
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