Channel balance window falls out

Hello! Thanks for submitting these photos. I do recognize this balance and we can supply it, though it has to be a custom order due to its configuration. What you have here is called a "rivetless extended channel balance," named for its extra-long cord and the method by which the nylon fittings snap into the metal channel.

Before we go any further, I just had a few points I'd like you to clarify to make sure we get everything right. These are non-refundable, after all, so I like to be thorough.

• To start, what is the length of the metal channel? Make sure to only measure the metal channel and do not include the nylon fittings. It should end in a 7/8" increment (17-7/8", 30-7/8", etc.), which is the only sizing option we can supply. I've seen other size increments like 1/4" or even 1/2" but these are unfortunately unavailable to us.
• Next, can you confirm what the stamp reads? It looks like it might say 25 4 but I want to be 100% sure.
• Finally, how many did you need altogether?

Once I have that information, and assuming that you have a size that we can supply, then we can get the ball rolling on a purchase.

You also mentioned the take out clip, but the type used on this window is unfortunately not something we can get a hold of. I've tried very hard to track it down but have never had any luck. The only option I can suggest is to drill a hole a little bit above where the old clip went and then install a screw there, making sure it sticks up a little. This will work the same exact way as a take-out clip and you can just remove them when you're done. It's not ideal but it's the only solution we have.

That does appear to be the case. That's very unfortunate. 

I really wish we could get these off-size lengths but so far they have been very hard to source. All we can provide right now are the 7/8" increments, which are going to be just a bit too big: the issue you'd face in using these is that the balance would stick out of the bottom of the sash a little, which will prevent you from opening the window.

My recommendation for your next stop would be to try to contact the original manufacturer directly. I don't know for sure if they will point you in the right direction, but I just don't know where else these off-size balances come from.

I am very sorry that we can't be of more assistance. 

I was happy to help, of course. I'm just sorry we weren't able to get you the hardware you needed. Best of luck with your repair.