Spiral window ballast

A quick learner from 07740 says:
The plastic sleeve measures 24 inches the diameter is 5/8

Is 600 series 24inch the correct part?
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Paul from SWISCO responded:


Yes, I believe that you are correct and the hardware you're showing would be a match to our S600-24 spiral balance with a blue bearing. Please note our Series 600 tilt balance is made with metal tubes instead of plastic for durability. Thanks for posting!

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