I took pictures of the parts I have. The number on channel balance is 2820 and the part measures 29"x 1/2". I need all replacement parts for 4 windows and instructions on how to do it.
Thank you
JIM
Paul from SWISCO responded:
May 10, 2018
Hi, Jim. The balance manufacturer has discontinued the screw on balance shoes and are now replaced with a 15-002 bottom balance shoe. You should be able to go with our S370-29 channel balance with a 2820 option.