Thank you for your inquiry regarding this item from Prime-Line Products. The length of this casement operator is measured from the center of the guide button roller at the end of the arm, to the center of the housing. A diagram of this measurement can be viewed by searching for this same model number in Prime-Line's website.
For faster service, be sure to take advantage of the CHAT option located in the lower right-hand corner of your screen, where you can quickly be connected to a representative for assistance. Otherwise, you can contact the manufacturer directly with your questions regarding this item, or any other product manufactured by Prime-Line Products by calling their toll free number at (877) 649-9740, or by contacting them by email at [email protected]
Date published: 2017-03-30