Replacement Sash Support Coil Balances

Home Owner from illinois

Feb 19, 2020 2:51 pm

I have a coil balance that is broken, the only identified marking is a "F" on it. What is the correct coil I need to purchase to replace this and any associated parts? Thank you.

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4 Replies

Tom from SWISCO

Feb 20, 2020 1:07 pm

Thanks for posting! I think I have an idea of what this balance is, but I'm not 100% sure. To confirm, can you show me a picture of the pivot shoe to which it attaches? That acts as a sort of "key" and allows us to figure everything else out.

Home Owner from illinois

Feb 20, 2020 5:07 pm

Thank you. What the coil fits is this:

Coil Balance Shoe, Slate Blue
Code: 15-177

Paul from SWISCO

Feb 21, 2020 8:22 am

If your pivot shoe is our 15-177 you mentioned, then our Series 152 coil spring will work with these. This coil is screwed onto the pivot shoe with the 33-071. With your coil being marked with an "F", it tells us the spring holds a sash weight of 6 pounds. Therefore, our S152-6 should make for a good fit. Have a look and let us know what you think.