We need to replace the sash balance in 4 windows. The balance box is marked Anderson 11600A-3 and 11600-17 and there are smaller numbers L91/1327 8P98 96
Casey from SWISCO responded:
June 28, 2021
Hello,
Based on your stamp code, you would need our 24-L9-1327 Andersen sash balance. Also, see the opposite-handed version 24-R13-927. Thanks for posting!