Coil for window

Hello,

It looks like you have an older version of the 15-180 balance shoe, which is used with the Series 190 coil springs and related items shown on our product pages. If your coils do not have anything stamped on them, you would need to weigh your sash and divide the weight by the number of coils used on both sides to choose the correct strength options. Thank you! 

We do not recommend the quick tilt coil balance to replace the assembly shown in your photos. It is always a good idea to replace the original hardware with exact replacements whenever possible to ensure that the window operates properly. In your case, that would be the 15-180 balance shoe, the S190 coil springs and the related parts listed on our product pages. 

You would only need to replace the parts that are broken, which is one of the benefits of this type of assembly. 

I'm not quite sure what you mean by the top piece. Are you referring to the cover for the coil balance? If so, we offer the 15-186 for single coils, as well as the 15-182 bushing to hold the coil spring in place. 

To determine the strength option for the replacement coils, you would need to weigh the window sash and divide the weight by the number of coils on each side. 

In that case, I would recommend using one S190-940 coil on each side. 

Sure, see the video below. The coil balance parts differ from yours but the process is fairly standard. 

We're happy to help! Just let us know if you need anything else.