Thanks for posting. For a balance with the stamp option 29 9, we will need to know the weight of your sash before we can determine what option would be best. Please remove your sash from the window and place it on a scale and let us know what the weight is, and we can help you from there!
The weight of the sash is 25lbs for the 29 9 EX CMC 11. Please respond with the correct option to order.