Channel balance

Thanks for writing in. I'm afraid it's going to be difficult to know what balance you need from this pair, since the top nylon attachment appears to be damaged on both balances. Is there an identical window in the house where these top attachments are still intact? Seeing them would be crucial to narrowing down the possible replacements. If, by chance, those top attachments resemble our 19-005, see our S395-35. You will need a stamp option of 3440. 

For your Top Sash Guide, start by looking at our 18-178. Compare the dimensions and see what you think.