SWISCO - The Replacement Hardware Authority

Constant force spring balance

A home owner from The Bronx says:
Hi my name is Themis and I need to replace the spring balance shown in the two photos above.

I have located the coil balance shoe #15-177 in your parts section but I can't locate the coil housing. I also need help in identifying which series coil balance will fit coil balance shoe #15-177.

I have also calculated and found that I need two five pounds coil balance, as per your instruction.

Please advise. Thank you.
User submitted photos of a coil window balance.
Profile picture of Paul
Paul from SWISCO responded:
I agree, the 15-177 shoe looks close. This shoe uses our Series 152 spring. You do have kind of a weird support, but our 15-150 may work as a replacement.
A home owner from The Bronx says:
Thank you.

A quick learner from Bronx says:
Hi Paul, I am ready to order the 15-177 shoe, the Series 152 spring and the 15-150 support. My question is how do I connect the Series 152 spring into 15-177 shoe??

Thank you.
Profile picture of Paul
Paul from SWISCO responded:
Great! The Series 152 spring screws into the 15-177 shoe.
A quick learner from The bronx says:
Thank you, ready to place the order!!!!
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