Vinyl window balance

Contractor from Dover de

Nov 10, 2017 8:49 am

Hello. I think I found what I need but just want to get a second opinion. The window only weighs 18lbs but it has a double coil. The lowest double coil you sell is for 22 lbs. S140-11. This looks like the right part. Minus the screws. Mine has two screws to hold it in. The t bar. 26-378 looks to be correct for a replacement. I

3 Replies

Contractor from Dover de

Nov 10, 2017 7:02 pm

Was looking again at my options. I actually have the spring carriers and they are fine just the springs are bad/broken. I think I can just order the springs instead. Which ones would be correct to lift the 18 lb window. Again, I have two coils on each side, so the coil strength should be around 4.5 lbs?

Thanks!

Tom from SWISCO

Nov 15, 2017 11:47 am

Thanks for contacting us! Your shoe looks like our 15-199, which is commonly used with the 1/2" wide Series 160 coil spring. See what you think. For an 18 pound sash, I think using four S160-4 springs would be perfect.