I need to replace the sash balance on my sliding window. From the pictures and descriptions, this looks like the right replacement part. It is a Vantage vertical slider 287-N-024. I have a couple of questions.
- The guide on the web page says the metal channel is 14" long. The old metal channel measures 13 3/4". Is this close enough? Should I consider this to be 14"?
- The stamp imprint on one of my old metal channels says 13 9 (there is a space between the 13 and the 9). The other one says 13 4. I don't know if the corresponds to any of the weight options above. Should I just try to weigh my old window or does 13 9 mean something.
Thank you for any help you can offer.