Channel balance picture is a good one. 390? 385 looks the same but 385 mentions double hung, these are single.
The ones I have have 2220 on them, so is that YOUR 2220 sash option?
Do you install the clip on too I hope? Need the whole thing, roached.
Windows are 23" by 40", 30 year old townhouse. They work fine.
THANK YOU
Bill
Paul from SWISCO responded:
September 14, 2017
You are showing the balances that were used on old Capitol single hung windows. They used our S370-23 with a spring weight option of (2220). I believe you can use these, if you want, but you should verify the length of the balance and the spring option. Your sash should weigh between 8 and 12 pounds, if the option is correct.
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