SWISCO - The Replacement Hardware Authority

27" long balance stamped 27 3 BSI NL

A home owner from Tucson,Az says:
Which option should I use when ordering? 2640?
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Tom from SWISCO responded:
If the stamp on your balance reads 27 3, then the length should be 28". Re-measure the metal channel and confirm that. If so, then I would recommend the 2730 option.
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