Looking for Guide Sash

Hello there. Start by looking at our 18-009, 18-166, or 18-188. Look over their dimensions and see if you think one of these guides would work as a replacement. 

See our 18-008 Top Sash Guide. I think this matches yours, but look over the dimensions to see what you think. 

For a non-tilt window that used channel balances but the originals are missing, measure the height of visible glass in the window, then add 1". That will tell you the length balance you need. Unfortunately there's no way of saying for sure what Series balance you need without seeing the original, but if other windows in the same house use the Series 385, that's probably the best guess to go. You can always return balances if they don't work; see our Return Policy here.