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Tom from SWISCO responded:
March 23, 2020
Hello! This assembly is actually called a coil balance, not a channel balance. That's an important distinction to make as channel balances are a different kind of part and incompatible with what you have here. The good news is that we can supply the parts that make up your coil balance assembly. Start by looking at our 15-199 pivot shoe, which is compatible with the 3/8" thick Series 165 coil spring. You should check to make sure your spring is also 3/8" thick just to be sure; if it's not, let me know and we can find something better. Assuming you have the Series 165 as I surmised, then you specifically want the S165-4. This is indicated by the "#4" stamp on your original spring. This indicates that each spring provides 4 pounds of support. Since you have 3 springs per side, this means you have a 24 pound sash. Your cover looks like our 15-205 triple spring support, but you can probably reuse your original as long as it isn't broken. You could even reuse your old 15-199 pivot shoe if it's in good condition. Please let me know if you had any questions or if you wanted clarification on any point. I'm happy to help as best as I can. |
