Channel Balance for Silverline 3000 Tilt Window

Question

A string/pulley mechanism broke on a channel balance for one of the sashes of a 3060 Mull window. The other channel balance is still functional. The involved sash weighs 24.7 lbs. Both of these channel balances are stamped 26 3 BS1 RL. (The BS1 could be BSI as the last symbol is simply a vertical line.) The metal channel actual measurement is 27" by 9/16" even though the number stamping starts with 26. The T-lock balance shoe is 1 1/4" wide at the base. For my channel balance selection, do I need a S795 26 or S795 27. And should my option choice be B or D?
Thanks

Jasmine · Accepted Answer

Thanks for posting! Since the balance has a 27" channel, you'll need to purchase the S795-27. Although, to confirm that this is the exact replacement you need, you'll want to be sure that your shoe is a closed cam, T-Lock balance shoe with a 1-1/4" width. If it is not, I'll need to see a photo of the shoe, removed from the window channel.

If your sash weighs 24.7lbs, I suggest selecting the 27D option. This will support a sash weighing 22 to 26lbs, according to the chart below the product description.