33 inch window block and tackle sash

Question

This part helps lift and hold my window in its frame. The window probably weighs twenty-five to thirty five pounds.

Tom · Accepted Answer

It's hard to make out the depth of your bottom fitting from this photo, but it looks like it's greater than 1". If so, then you can use our S390-33 channel balance. This comes with a 19-002 top and 15-001 bottom fitting, the bottom one being 1-1/8" deep.