Carlon® SuperBlue™ Hard Shell Boxes combine
the features of the hard shell thermoset box and the thermoplastic
PVC style box to create a "new" rigid nonmetallic
wiring box. Molded out of specially formulated thermoplastic
material, Carlon SuperBlue boxes are so strong they won't
crack or break, even in extreme environments. So rigid,
they resist flexing and hold their shape even under the
They provide the largest wirefill capacity
in their class, and come with molded-in nailing flanges
as well as molded-in clamps to make installation faster.
Carlon SuperBlue boxes are lightweight, noncorrosive
and nonconductive. They are designed to nest inside
one another so they take up less shelf space and are
easier to transport to job sites.