Measurements 27 in
No markings
Window sash weighs 22 lb
Measurements 27 in
No markings
Window sash weighs 22 lb
Hello,
With this combination of attachments, you could have either an S380-27 or S385-27 channel balance. You’ll need to measure as shown below. The Series 380 has a 1" bottom attachment, and the Series 385 has a 1-3/32" attachment. You'll also need 2640 spring strength options to support a window sash between 19 and 26 lbs.
Thank you and let us know if you have any other questions or concerns.