Hello. I have similar 17 inch 500 series balancer 5/8(9/16) tube but it pointed out 1 1/2" with the top cap removed and the top end of the spiral flush with the end of the tube,When assembled total length is 19 1/2"
I would need top mounting screws and the metal SCREW-ON FACE GUIDE. Not sure do you have the same like the one on the picture. It is bended metal guide.
I'm looking for 8-10 balancers.
Will need a tip too. I can't find a way to insert window sash in the frame with 2 balancers installed.Picture of the window is attached. I might be able to do it but have to bend the sprong way too much. The metal pin of 15-040 is on my way to insert the spring straight.
Sash is 9Lb, so red tip should work just fine.
![IMG_20190717_000601](images/pictures/2019/07/228367.jpg)
![IMG_20190717_220827](images/pictures/2019/07/228368.jpg)
![IMG_20190717_220936](images/pictures/2019/07/228369.jpg)