Window balance

Question

1/2" width. Bottom end inscription: 27 4 (BSI sideways) 0C (or OC, unclear). Only one in my parents house is broken, but I understand that you suggest replacing them in pairs.

Bob · Accepted Answer

Hey there. See the S378-28, S380-28, or S385-28. The only difference between these three channel balances is the shoe depth. See below. Measure your old balance's shoe depth to see what matches best. For a stamp option choose 2740.

Comparison of the S378, S380 and S385 balance shoes.