aluminum parts

Hello,

It looks like your window uses a type of spiral balance, but we can't say for sure the type you need since the spirals are missing. If there are no intact balances to reference, your best bet would be to remove the old spring and try installing our S500 spiral balances and 17-012 mounting brackets. It should work fine as long as you have enough space. Also, please note that we do not carry replacement jamb liners the balances install in. Take a look and see what you think. Thanks for posting! 

How to measure the length of the Series 500 spiral balance.

Additional dimensions for 17-012

Dimensions for 17-012