the code on my channel balance is
27 5 HR
the Metal part of channel is 28" and looks like it
uses guides 19-002 & 15-002
Paul from SWISCO responded:
June 15, 2012
Thanks for contacting us! Based on the attachments you've identified, and your balance length, I believe you should look at our 28" Series 351 channel balance; or, S351-28. Does this look about right to you? For the stamp option, I would select 2750.