Not sure if this is my coil.

A home owner from MA says:
I have double hung windows. the old coil had the number 7 on it so it must be 7 pounds. I measured 25x25 and the end calc came out to 7.2 pounds, I looked at the old balance coil and it has just the 1 round hole at the end. I just wanted to check with you, I looked at the 190 series and but it doesn't give me the pounds but it could be the 704 model. Could you please tell me which one I need.
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Paul from SWISCO responded:
Thank you for contacting us.

To get started, upload a couple quick photos of the coil balance so we can take a look and help you identify a possible replacement.
A quick learner from MA says:
Ok, also they are 1/2 wide with one round hole at the end.
user submitted photo of coil balance
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Mike from SWISCO responded:
Thanks for submitting your photo. Take a look at the S152-7 7 lb Series 152 Coil Balance. This coil balance measures 1/2" in width.
A quick learner from Blackstone, MA says:
I ordered the parts, I had to fix three large windows and one small side bay window and it was so easy to do they fit perfect the windows are working again. Thanks to this website I was able to get the parts, sad thing is the house was built in 2004 I bought it and the windows were failing shortly after. Thanks again for your support.
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Mike from SWISCO responded:
Thank you for posting an update. I'm glad to hear the parts worked out for you.
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