Window balance
Thanks for your post! This balance shoe can be replaced with either the 15-218 or the 15-220 Pivot Balance Shoe. To determine the best fit for your repairs, carefully review their dimensions on the website. Be sure to double check the thickness of the shoe.
Unfortunately, we are not able to provide a replacement for the balance spring. This part is a jamb liner spring balance. Since this appears to be a vinyl window, you'll need to reach out to the manufacturer to inquire about the replacements. If it is a wood window, you'll need to reach out to a local mill work.
Please feel free to reach out with any other questions you might have!