The bottom piece is 1 1/8" wide. This is the top part I do not see on your website, specifically I don't think it has tabs but it does have a halfmoon shape when looking at it from the top end. There seems to be part of it broken off opposite the half moon shape but the sides seem smooth like no tabs ever existed.
Casey from SWISCO responded:
December 18, 2020
Hello,
Your top attachment resembles our 19-002 but we would need to see the bottom attachment as well to identify the correct balance replacement for your window. Thank you!
A quick learner from St. Petersburg, FL says:
December 18, 2020
Here is a pic of our bottom piece
Casey from SWISCO responded:
December 18, 2020
It looks like you have either our S351, with a 15-002 bottom attachment, or S390, with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need. Thank you!
