Pella Block and Tackle Window Replacement

Thanks for your post! This window balance can very likely be replaced with the S795-24 Channel Balance. Although, I'll need to know if there is a hook or a clip at the top of the balance. If it is a hook, please confirm the shape of the hole it installs in; you may need a custom assembly.

The shoe is likely to be the 15-195 1-1/4" T-Lock Balance Shoe with a closed cam. This is the one that comes assembled on the balance.

The video tutorial below if for our Crossbow balances but at the 3 minute and 12 second mark, we show how to remove/install the assemblies: