replacement ballast

A home owner from Easton PA says:
I built the home I live in 20 years ago.
I would like to find replacement ballast to replace the broken ones.
I am attaching photo's of my current ballast.
It is 28" long.
It spirals out.
Any help or info would be greatly apprewciated>

Gary
Thumbnail of the uploaded file named IMG_9082.jpg
Thumbnail of the uploaded file named IMG_9084.jpg
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Casey from SWISCO responded:

Hello Gary, 

Take a look at our S900-28 spiral balance. You may need to remove and weigh your sash in order to choose the appropriate tip color. There is a chart on our product page explaining which color you'll need based on your sash weight. Please let us know if you have any other questions or concerns. Thank you. 

A quick learner from PA says:
Hi Casey,
Thank you for the above information.
I did weigh the window, and it weighed 20 lbs.
Which tip would you recommend?
I looked at several of my balance's and unfortunately none of them have a tip.

Thanks.

Gary
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Casey from SWISCO responded:

For a 20 pound sash, you would need the green tip option on our S900-28 spiral balance. Let me know if you have any more questions. 

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