SWISCO - The Replacement Hardware Authority

Replacing my Anderson brand, vinyl clad balance boxes

A quick learner from Mohegan Lake, NY says:
Need to replace balance boxes on small bath windows, Anderson brand, vinyl clad. Old balance boxes show stamped numbers B14 4 19 071. Which replacement boxes do I need?
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Paul from SWISCO responded:
Based on your stamp of "4 19," I recommend our 24-431 Andersen sash balance.
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