Replacement coil spring

Handy Person

Aug 25, 2023 11:26 am

Need coil springs for both sides of window. Do not know the size of slings there is no size stamped on Case or sping.
Sash weight i s 11 lbs and is duel spring.

2 user uploaded images

2 Replies

Emily from SWISCO

Aug 25, 2023 1:16 pm

Hi there!

It looks like you have the 15-087 pivot shoe and 15-086 housing. The Series 180 are the compatible coil springs. With an 11-pound sash, you have two options. You can either use one S180-5 5-pound spring on each side of the window or one S180-6 6-pound spring on each side of the window. The decision is ultimately up to you!