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What are the differences between the QU12L400CL, QU12L400SL and QU12L400FL Combination Service Entrance Device Meter-Main?

The QU12L400CL is a surface mount device, convertible to semi-flush with a field installed FK400 flange kit (ordered separately). The QU12L400SL is electrically equivalent, but is suitable only for surface mounting. The QU12L400FL is also electrically equivalent, but is a semi-flush mount device only, with the semi-flush top endwall factory installed and sidewall flanges factory included.


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