Balance Tube Replacement

Question

Good Day. Looks like your series 600 spiral balance is what I need along with new pivot shoes. I have replacement windows that are vinyl and have thick glass so they are pretty heavy. I weighted one of the double hung windows and it came in at ~26 lbs. We have always had problems with the windows not being held up and balance tubes breaking. We have had pros fix them only to have them break again in a few months. I decided to research to see if I could do better. Your web site is very helpful. The balance tube diameter is ~5/8 and the length of the tubes are 27". It looks like the pros have been using a red tip but I was wondering since these keep breaking and the window weight is close to the maximum for the red tip, if I should move up to the blue balance tube to try to get a bit more help with the spring strength. Your thoughts on this?
Thanks!
I am going to order enough materials to replace everything in all 8 of my replaced windows but I thought I may just order enough materials for one to start. Do you offer returns if I order the wrong materials?
Thanks again.

Casey · Accepted Answer

Hello, and thanks for your question. The blue tip series 600 spiral balance supports a sash weight of 12-31 pounds, so with a 22-lb sash, you are right in that weight range. We do offer a 30-day return policy. Please send us photos and dimensions of your pivot shoes so we can determine which one you need. In the meantime, check out out 15-015, 15-046, 15-047, and 15-173.