Paul from SWISCO responded:
November 2, 2017
Since these are old wood windows, I think you should consider our Series 500 non tilt balance along with a 17-012 bottom balance bracket. To figure out the balance length, get the height of the visible glass, then add one inch if it's the top sash or three inches if it's the bottom sash. That'll be the length you want.
We also carry the 58-053 kerf mounted bubble seal, which many wood window manufacturers have used on the bottom sash to press against the sill. |