Vertical window balances, 1/2"

Thanks for posting. Channel Balances come fully assembled; the spring or cord components are not sold separately. At any rate, it proves easier to replace the entire balance. We can help you identify the balances you need. You show two different balances in your pictures. Could you provide pictures of the nylon attachments at either end of the balances? And can you give us the length of each metal channel, without including the nylon attachments in those measurements? We should be able to narrow down what you need from there. Many thanks.