Replacement 6lb?

Question

Hello,
Could you tell me correct part to order, please.
Thank you

Bob · Accepted Answer

Hello there. You will need to remove the assembly from the window to confirm its thickness. See the guides on this page that show how to do this for a similar setup; it should help. Measure the thickness of the bottom coil balance shoe. If it is 9/16" thick as shown below, you have an S161-06 6 pound assembly. You will also need a secondary 15-086 Tandem Housing, along with an S180-06 6 pound spring.

Alternate image for S161-06

If the shoe is 7/8" thick instead however, go with the S210-12 12 pound assembly. Because this balance Series has a 12 pound option, that will cover all the weight that your old coils supported, and so all you'd need is the S210-12. Let me know if you have further questions about any of this.

Alternate image for S210-12