window balancer

Question

I ordered two each and received, S150-8 and 15-143, 15-140, 15-144, and 15d-145.
I think the spring is for a 10 pound window.

the order was a year ago and I do not remember details.

Casey · Accepted Answer

Hello,

I do not see any past orders listed under your email address but I can tell you that a 10-pound sash would use one S150-5 on each side. You'll just need to be sure that the specifications of these balance parts match the original hardware from the window. Thanks for posting and let us know if you have any other questions.

Alternate image for 15-140