Series 152 Coil Balance Quote

Question

I have a double coil window balance from a MI vinyl double hung that I am trying to identify. The only markings are light stampings on the springs themselves reading 732

Bob · Accepted Answer

Hey there. If you are sure you have the Series 152 Coil Balances, then a '732' stamp suggests you can use the S152-7 7 pound spring (the 32 just refers to the travel length of the coil). If you are uncertain what coil springs you have, remove your old assembly including the pivot shoe and send us photos, and we'd be happy to help.