Late 1970s vintage Anderson Double Hung Windows Sash Balancer

Question

Hello. I'm trying to replace the sash balancer for 1970s vintage Anderson double hung windows. There isn't much of a part number on the case. Only E7 8 31 1. The top pane measures 23-7/8" tall and the bottom pane 36" tall. Width is 28-1/2".

Tom · Accepted Answer

Hello there! Based on your stamp of "8 31," I recommend our 24-837 Andersen sash balance.