Help finding a Top Sash Guide

Thanks for posting! I'm hoping we can help, but I'm having trouble finding this top sash guide. It's hard to make out your dimensions based on your photos, which are a little blurry. At the end of the day it will come down to dimensions. Your style is also different from any of the parts we carry. My honest assessment is that this may not be something we can provide. However if you can confirm your precise dimensions, we will do our best to find something that will work.

The Series 351 channel balance is compatible with a wide variety of different top sash guides, too numerous to really list. The only way we can find this top sash guide, if it's even still available, is to confirm its dimensions. If you happen to know the manufacturer of your window then that would also be a huge help.