Identify Replacement Window Channel Balance

A handy person from Austin says:
April 12, 2024
Stamp say 2720 BSI. I'd like to go up to a 2730. I also need to replace a set of 2740 BSI. both are 28 inches, not including the plastic parts.

What are my options? Thank you.
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Bob from SWISCO responded:
April 12, 2024

Hello there. This looks like an S395-28 Channel Balance. Unless there was an issue with opening and closing your windows prior to these balances we breaking, we strongly advise just sticking with the stamp options you originally had (2720 and 2740, respectively). Stamp options designate highly calibrated weight ranges that balances can support. You absolutely do not want to use a stamp option with a weight range that your window sash falls outside of. Otherwise the windows will have trouble staying open, or they'll drift open when you don't want them to. Let me know if you have any other questions or concerns. 
A handy person from Austin says:
April 13, 2024
Thank you for the response and advise!
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Bob from SWISCO responded:
April 14, 2024

My pleasure. Let us know if you need anything else, and thanks for contacting us. 
28" Series 395 Channel Balance
28" Series 395 Channel Balance
S395-28
$10.45
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