Thanks Tom. Will check when I'm back home and update. I think its the 1" but will verify.
This is what I needed. You guys are awesome. Thanks much.
Got the parts. Used the great video and installed. Went great. Thanks for the help.
One thing I learned - I had two slots in the channel to chose from to put the hook in, and I first selected the lower one which caused the window to slide almost all the way down but not quite. Obviously I needed the upper slot chosen. Once I did that, all went as expected.
Thanks much,
Erez
Great news, Erez! I'm glad everything worked out.