coils have two(2) difference sets of numbers on them
coils 1 1/4" x2 5/8"----- 1 1/4 x 1 5/8"
window weight 18bs. - 17lbs.
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Tom from SWISCO responded:
September 12, 2022
Hello! Your pivot shoe appears to match our 15-191, which is designed to be used with our 1/2" wide Series 160. You should measure your old coil just to ensure that it is the same size. We also sell the 15-150S single spring support and 26-454 pivot bar. As for which Series 160 to use, that's a little tricky. For a 17 pound sash I would ordinarily recommend an 8.5 weight option for each spring, but that particular weight option is unfortunately not available to us. With that in mind, you might want to consider the 9 pound S160-9 instead. Having one of these on each side of the sash gives you a total support of 18 pounds. It's a pound heavier than what you need but that shouldn't be the end of the world. Look these parts over and see what you think. |
