Casey from SWISCO responded:
July 28, 2022
Hello, I agree that as long as your shoe depth measures more than 1", the S390-28 channel balance would be the correct replacement. The 27C stamp on your assembly would generally indicate that you need 2730 strength options for your replacement balances. If you want to be sure, you can weigh your sash to make sure it falls within the 13 to 19-pound weight range that this strength option supports. Thank you! |