Paul from SWISCO responded:
March 30, 2011
Good Morning,
The specific pairing of balance attachments are what determine the balance Series. Have you confirmed your balance attachments are that of the Swisco 19-018 and 15-005? If so, then yes, the Series 377 will work as a replacement. The "29 5" translates to the stamp option: 2950. If you're uncertain about your balance attachments, you can always upload a few pictures for us to take a look. |
Paul from SWISCO responded:
April 11, 2011
Dexter, the 18-042 Top Sash Guide goes with the Series 377 balance. There is no bottom sash guide, only top.
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