sash cord for Andersen window

Hey, Samuel. I'm afraid that the most reliable way to identify what Andersen balances you need is to go by the stamps printed on the balance box--which means removing the boxes is necessary. I know it's a bit of a process, but that's how Andersen designed them. That said, we could try to figure it out another way, if you wish. Please give me the Height" x Width" of the visible glass for the sash these balances are supporting. We will try our best to identify what you have from there. However, I should stress this method is not often reliable and we cannot guarantee that our suggestion is exactly what you have now. If you instead decide to remove the Andersen balance to photograph the stamps for us to review, see the video below. 

Thanks for getting back to us! If the insulated glass thickness is 3/8" overall, we recommend the 24-939. However if the glass is 5/8", we recommend the 24-1033 instead. However, please keep in mind these are just suggestions. We cannot be 100% sure that they will work for you without knowing the stamp on the old balances. Let us know if you have further questions.