21?Philips-28 series 810s channel block and tackle window balance
Need replacement. It is 21? long and 1/2? wide with code on bar as 20-4 GD5 CMC 90
Bob from SWISCO responded:
July 20, 2020
See our S380-21 or S385-21. The only difference between these two balances is the depth of the bottom nylon shoe, or the 'heel-to-toe' measurement, so compare both with your old hardware to see what matches best. You'll need a stamp option of 2040.