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.<br />What are the blanks for a QMB, obsolete type panelboard?

For the 31`` QM type:
QM1BL (1.5``)
QM3BL (3``)
For the 38`` QW type:
QW1BL (1.5``)
QW3BL (3``)
However, these old blank fillers are obsolete, no longer available, with no replacement. Suggest installer to have fabrication done at a local sheet metal shop.






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