Window Balances Breaking

Question

Vinyl tilt out windows were installed in newly constructed house in 1999. Location Tulsa, OK. Can't find any part numbers. No manufacturer name or branding.

Track opening width is 3/4 inch with overall shoe width of 1 and 1/4 inch.
Track depth is 5/8 inch.

Entire mechanism consists of 1/4 inch rod, one spring coil, cording, 1 plastic guide screwed into top of track and 1 plastic guide attached to rod at bottom of spring, and one plastic shoe at bottom of track.

We think the replacement part is an S775-xxc. Bottom window height is 29 inches. Not sure what length the balance needs to be. Windows weigh in at 18 to 20 lbs.

Bob · Accepted Answer

Thanks for posting. This old rod balance isn't made anymore, but you are correct; this can be replaced with our Series 775 Channel Balance. You'll need to measure the length of the rod, not including the bottom shoe, to determine the length you need. You'll then be able to also match the exact weight of your window sash with one of the weight ranges listed alongside each stamp option on the product page.