A quick learner from Arizona says:
Is the stamp option necessary, and if so, how do I know which one is correct. I have a 31" and a 13", channel, actual measurements are 13.5, and 31.5
Profile picture of Tom
Tom from SWISCO responded:
Yes, the stamp option is one of the most important parts of balance selection! It determines how strong your springs are, and if yo don't choose correctly the windows will not operate correctly and the balances may even break.

The best way to determine what option you need is to weigh your window sash on a scale and compare it to the list of options we have for each balance in our inventory. We tell exactly what kind of weight each option can support.
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)