Balance replacement

Thanks for posting. See our S380-27 or S385-27. The only difference between these two balances is the 'depth' of the bottom nylon shoe, so compare both with your old hardware to see what matches best. You will need a stamp option of 2640. For your Top Sash Guide, see our 18-171. Keep in mind you might have an older version of this guide, and you may need to cut a bit off the top to fit your window, but this should work for you.