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Jasmine from SWISCO responded:
January 12, 2024
Thanks for reaching out! Given the dimensions you've confirmed, I believe you'll need the 5/8" diameter, Series 500 Spiral Balance. This 5/8" measurement is sometimes considered 9/16", in the trade, which is just about 1/2". You'll specifically need the S500-28 with a red tip (which holds 7 to 29lbs) and the S500-33 with a red tip (which holds (12 to 30lbs). The compatible bracket is the 17-012 Bracket, #32. This bracket hooks onto the T-shaped tabs on the the tip of the balance. Both the balance and the bracket can be secured in the window and to the sash using the 33-016 #8 x1" SS Installation Screw. To add tension to the balance, once installed, you'll need to use the 75-005 Spiral Balance Charging Tool for Non-tilt Windows. Take a look at the guide below for an idea on how to adjust the balances. |
