Balancer L9/1327 and R13/927

A home owner from Upper Saddle River, NJ says:
Hi I need these 2 balancer the L9 and R13 used in the same window.
I have 2 more exact same windows that need replacement but haven't taken them apart. Is it reasonable to assume that the balancers are the same ?
I would need a total of three sets.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
The L9 balance is 24-L9-1327 and the R13 balance is 24-R13-927. As long as the other windows are the same size, and the sashes match, then the balances would be the same.
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