Window springs
Hello,
We'd be happy to look into this for you, but we'll need to see the pivot shoe these coils anchor to as well. If there are no numbers stamped on the original coil springs, you'll need to weigh the window sash to determine the strength options needed for the new coil springs. Thank you!
Thanks for getting back to us. I can't be sure with the pivot shoe still installed, but you may have our 15-111 shown below. If so, this is designed to be compatible with either the 1/2" Series 160 or the 3/8" Series 165. Based on your sash weight, you'll need one 6-pound coil on each side.
You can certainly reuse the pivot shoe if it's in good condition. Shipping is calculated at checkout and will depend on what option you select, since we have a few different choices.