Paul from SWISCO responded:
August 2, 2018
Hi Tommy, thanks for reaching out to SWISCO. It looks like you have an old spring stamp code that represents a sash weight range between 7-21 lbs. Since that's a really wide range, we feel you can use the 29C option for a sash weight range between 18-23 lbs. This covers most window sashes with insulated glass. Please weight your sash to confirm this will work for you. Regarding the 15-043 terminal clip, it does come attached to the S770-29. Let us know if you have any more questions before you place your order. |