Hello, one of the window springs broke and need to replace it. The upper portion of the spring is attached with a screw (see photo 1) while the bottom uses T-Lock balance (see photo 2). The only stamp I find on the old channel is 26 5 BSI. I am looking at your model: 27" Series 795 Channel Balance 27C as good replacement. The old channel measures measures slightly over 27". Can you help and confirm that the model listed is adquate?
Thank you, Carl