Paul from SWISCO responded:
October 4, 2018
You must have a very heavy window to require two balances. The balances look similar to our Series 770. Look it over and see what you think. If you aren't sure, remove them from the window and show us a picture to look over. The stamp is a little peculiar. If our Series 770 can work, you'd have to weigh your sash on a scale to get the exact weight and then refer to the chart we have on every Series 770 store page. You will probably have to do some math to determine the best option, since you're using two per side. I also associated two shoes that might work for you, depending on your dimensions. See our 15-119 and 15-120. |