Coiled Spring Window balance and track for vinyl replacement windows

Question

Spring is stamped with either a 6 or 9. Guessing that refers to the strength of the spring. Looking to replace both on a window where one of the bottom locking portion of the unit broke or separated from the spring unit above it.

Paul · Accepted Answer

Greetings -

Unfortunately, we don't have your exact balance system. We have a 1/2" wide coil spring, Series 160 that hooks on to 15-199 pivot shoe instead of screwing it on. The coil spring weight will be 9 lbs., so you would order S160-9. Let us know what you think.