Window balance 28F USB

Question

2 windows with "28F USB" block and tackle. Window weighs 40 lbs. A third narrower window weighs 27 lbs. Need 4 replacements for 40 lb windows, 2 replacements for 27 lb window.

Tom · Accepted Answer

We believe you may need our Series 380 channel balance. Compare the measurements of your balance she to ours to see if this is the correct one you need. We would also like for you to provide us with the precise weight of your window sash.