Looking for a potential replacement for a VPI window

I'm looking for balance springs to replace broken springs in a window made by VPI company. I understand that company is no longer in business. I'm wondering if you might suggest a set of springs that would adapt to that window. The sash is 15.5" ht. and 31" wide. The window frame channel is 1/2" deep and 1 3/4" wide. The coil spring is 1/2" wide. Would the S161 be a potential substitute?

I have pictures but have not been able to get them transferred to this post.

What suggestions do you have for potential replacements. I am able to make some adaptations.

Erich

I'm looking for balance springs to replace broken springs in a window made by VPI company. I understand that company is no longer in business. I'm wondering if you might suggest a set of springs that would adapt to that window. The sash is 15.5" ht. and 31" wide. The window frame channel is 1/2" deep and 1 3/4" wide. The coil spring is 1/2" wide. Would the S161 be a potential substitute?

I have pictures but have not been able to get them transferred to this post.

What suggestions do you have for potential replacements. I am able to make some adaptations.

Erich

Pictures now added!

I would appreciate help. It looks like one of your balancer units might work.

Thanks, Erich

Hi Casey,
I have a couple of questions about the replacement for the VPI window. Does the 15-087 have its own coil or does it need one installed. If so, does the housing come apart for installation? Since I don't have a number referencing the coil weight would the weight of the window divided by two equal to the coil number? For a double coil is a tandem unit needed?
Thanks!
Erich