29" Channel Balance with 2840 Stamp

A distributor from FOREST HILLS, NEW YORK says:
November 16, 2011
I need channel window balances and I am looking in your catalogue 29" series 350 channel balance. My old one is stamped 2840. Could you please advise if this correct and if not please advise the correct one so I can order.
Thank you.

Mary
A customer submitted photo of channel balance attachments.
Profile picture of Tom
Tom from SWISCO responded:
November 23, 2011
Thanks for posting! We will just need a big more information regarding your bottom attachments before we can offer any suggestions.

Please refer to this following chart and identify your shoe.
A SWISCO guide to identifying balance shoes.
A home owner from forest hills, new york says:
December 23, 2011
With regard to the above question, no it does not have wings. I thank you. Happy Holidays.
Mary
A home owner from forest hills, ny says:
December 28, 2011
Yes the attachment has wings. Waiting for your reply. Thanks. Mary
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Paul from SWISCO responded:
December 28, 2011
I'm sorry, Mary, I am a little confused. Does your bottom attachment have wings? It doesn't look like it does in your picture.

Also, can you please give me the length of the bottom attachment, as shown in the above chart?
A landlord from forest hills,ny says:
December 30, 2011
If you think it does not have wings I will go with your opinion. The lenght measures 1 1/4 inches. The width is 1/2 inch. Thank so very much.
Profile picture of Tom
Tom from SWISCO responded:
January 3, 2012
Thank you for the clarification. Please take a look at our S390-29 Channel balance with the 2840 stamp option. I think that would be the closest match to your sample.
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