triple spring balancer with shoe

Question

I need to replace these balancers there are no numbers on balancer just letters A, B, C, D, E, F. Sash weights around 51#

I believe the window manufacturer is castle

Tom · Accepted Answer

Hello! I believe this balance is an older version of our Series 140, but we don't sell a version of this assembly that can carry something as heavy as 51 pounds. That's actually a pretty extraordinarily heavy sash for coil balances. Can you confirm that exact weight for me?