Tom from SWISCO responded:
October 19, 2020
Your top sash guide is similar in design to our 18-015, but I recommend reviewing the dimensions we show on the 18-015 store page to confirm. I'm not sure about the balance. We have dozens of different balances with that stamp. It's not a product code or anything, it just indicates the strength of the spring. In order to figure out what Series this is, I need you to remove an undamaged version of this balance from the window and show me clear pictures of the top and bottom nylon fittings. I will also need to know the dimensions of these fittings. The video below will explain exactly what we need. |