Triple spring

A quick learner from Pennsylvania says:
I think I'm ordering the correct part for the triple coil lift.
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Bob from SWISCO responded:

Thanks for posting. The remnants of your old coil support certainly resembles the 15-150T, but ultimately it comes down to what coil springs your window uses. The 15-150T is used with Series 160 Coil Springs. Let us know if you have any questions.

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