Balance Channel Marking
A home owner from Richland, WA says:
May 20, 2014
My channel is stamped 26 4. Is this the same as option 2640 of series 385? All other parts look the same. Thanks!
Tom from SWISCO responded:
May 21, 2014
Yes, usually a stamp of 26 4 corresponds to our 2640 option. I recommend weighing the sash as well, though, just in case.