Paul from SWISCO responded:
March 29, 2019
I'm afraid I've never come across this type of balance system. We won't be able to provide this exact setup, but see our Series 140 to start out. These coil balance system has a 1-1/4" wide by 9/16" pivot shoe and also includes the springs and covers as one set. Check your old coil springs for stamped numbers. If they don't have them, weigh your window sash. You will need a balance system with a spring weight equal to half that weight on each side of the sash. See what you think. The only issue other than size is that you will need a new pivot bar to replace their old one. See either our 26-405 or 26-398. The best match will depend on the screw hole spacing. Look over our measurements and see what you think. |