Coil Balance Assembly

Hello, thank you for posting!

Please review our 15-140 pivot shoe which is compatible with the Series 150 coil spring. For new coil housing, please refer to our 15-143 coil bushing and 15-144 bushing cap.  To know what weights to select for the coil springs, look for stamp codes on the springs themselves. If there are none or you are unsure, give us the exact weight of the window sash(es), and we can work it out for you. Please let me know if you have any questions.