Stamp on current balance is: 26 5 RD B31
These are Silverline Windows from about 10 years ago.
What is the correct option to order?
Tom from SWISCO responded:
September 19, 2017
Consider 26E for 26 to 30 pound window sashes. That may be what you need. The best method is to weigh the sash and check the chart on the S795-26 webpage.