I need 4-9/16" channel balances for 2 PGT non tilt windows. Ive attached photoes and it seems they have a 19-005 top and a 15-001 shoe (the top seems to be grooved on the back side). The balances are 29" long and the sash weighs 23.6 lbs. I've ordered other balancers from you in the past, and would like to know how to correspond sash weights to your numbered balances when they are not stamped on the balance. This balance is stamped 28 4 CQ Caldwell.
Thanks for your help,
Marv
