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Bob from SWISCO responded:
April 1, 2021
See our 15-199 Pivot Shoe, which uses either 1/2" thick Series 160 Coil Balances, or 3/8" thick Series 165 balances. You'll have to remove your old balance assembly from the window and compare the coil spring thickness to confirm which type you need. There's only two ways to choose the spring weights you need: either go by stamps on the springs themselves, or, if there are none or you are unsure, give me the exact weight of the window sash. I can then work out what you need. For removal and replacement details, see the video below. |
