Series 200 Caldwell 22" Spiral Balance for Tilt Windows, 5/8" Diameter - Red Tip
M**K
Just okay for 30" window it's not for bigger windows.
It does the job but the spring is weak. It's not strong enough. I wanted to give it a couple more turns but afraid it might break. It was of right specification for my window but fell short of proper strength. You may use it with a window up to 30" wide or so; I won't recommend it if your window is bigger than that.
