Paul from SWISCO responded:
July 3, 2018
It's next to impossible to determine the proper length of a block and tackle rod balance while it's broken. If you have an undamaged balance in the same window, or an identical window somewhere else in your house, then I would definitely measure that to determine what length you need. Every window should have two balances. Block and tackle rod balances are also being phased out. They won't be around forever, and we are out of stock for many sizes. We find that our Series 770 works well as a replacement, though you'll still need to confirm what length you need by measuring an undamaged balance. You would also have to weigh your sash to confirm the best stamp option. |