Traco window balance replacement

It's hard to tell what your nylon attachments are from these photos, but start by looking at our Series 377. This may be the match you're looking for. It comes with a 19-018 top and 15-005 bottom, so as long as these two match you should be okay.

No, the 3150 cannot support a sash that heavy. Can you give me the exact weight of the sash, down to the ounce? If it's heavier than any of our standard options, it will have to be specially made. If it has to be specially made, we will need to be as precise as possible. Thank you!

Wow, that's pretty heavy. I'm afraid we don't have anything that can carry 50 pounds. The manufacturer simply never made a balance in this size for a sash that heavy. Can you double check? 

Thank you. In that case I think our 3175 option will be your best bet. This can carry sashes weighing 42 through 45 pounds. I will email you a special order link right now for 6 of them.

Our balances normally come in two widths, 1/2" and 3/8". Can you double check and let us know which you have. Thank you!