Bob from SWISCO responded:
January 23, 2019
Thanks for posting. If the nylon attachments are the same for both sizes, then take a look at the S395-16 and the S395-22. For the S395-16, the stamp number of 15 3 conforms to our stamp option of 1530, which is for a window sash weight range of 10 through 12 lbs. For the S395-22, the stamp number 21 3 conforms to our stamp option of 2130, which is for a window sash weight range of 12 through 15 lbs. Let us know if you have any other questions. |