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Jasmine from SWISCO responded:
February 23, 2024
Hello, Thanks for writing in! The channel balances you have appear to be a custom assembly. They appear to be the Series 770 channel balance with the 62-105 Heavy Duty Hook attached to the bottom of them. I am happy to provide you with an order link; however, to confirm pricing and available ability there are a few details I'll need to gather about the balances. To start, based on the stamp you have, I believe the metal channel of your balance should measure 23". Can you double check this measurement to be sure? I'll also need to know the exact weight of the sash. Unfortunately, I am not able to cross-reference your stamp with the stamp on the replacement balances. Each stamp option can support a specific weight range, so I'll need to sash weight to determine the best option. The compatible shoe for this assembly appears to be the 15-208 Pivot Lock Shoe. To determine if this is the right replacement, you'll need to remove the shoe and carefully compare the the dimensions below. 
Alternate image for 15-208
I do not believe we have an exact replacement match for your pivot bar but it is very likely we have a suitable alternative. To determine the right fit for your sash, I will need to see a photo of the pivot bar removed from the bottom of the sash. |
