Need replacement handle for casement house windowNami

We should be able to replace this, but there is one very important piece missing from this handle, which is the hole that connects it to the operator. These are usually on a kind of cartridge which pins into the handle. I bet it's still on the operator. We'll need you to remove that and measure the diameter of the hole, then tell me what it is.

That's the piece alright, though you'll need to pop it off and give us the hole you'll find underneath. This piece fits over a stem in the operator, you see. Once we know the diameter of that hole we can make a recommendation. I'm going to make an educated guess and say it might be 11/32"; if so, I recommend our 39-205.