Hello I was looking to purchase 2 sash balances for a project we are working on. The balance I found was the 28" Series 351 channel Balance but the options stop at 2770. Do you have a sash balance identical to the 28" Series 351 but has the strength and stamp of a 2790. The width of the channel is 1/2" the length is 28" metal edge to metal edge.
Sash Balance Stamp 2790

Quick Learner from Dixon CA
May 26, 2021 12:38 pm
5 user uploaded images
2 Replies

Emily from SWISCO
Jun 1, 2021 2:30 pm


Hi there!
The stamp on your balance might be outdated. You'll need to remove and weigh your sash to choose the appropriate spring strength option. There's a chart on the Series 351's product page that shows you which option you'll need based on the weight of your sash.
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