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Bob from SWISCO responded:
October 21, 2020
What is the length of the outer tube up to and not including that blue tip? That's what determines the spiral balance length, not the inner spiral rod. If it's 31" long, then you need either the S600-31 or S900-31, depending on the outer tube diameter. We generally only see Blue Tips with the Series 600 though, so if you have the S600-31, then there is indeed a Blue Tip option. If you have the S600-33, obtain the exact weight of the window sash. Then look at the weight ranges listed alongside each Color Tip option on the shop page to determine the Color Tip option you need. |
