l4 series explosion proof housing with slotted l7 arm and 2inch npt, standard approvals: ul/cul class i, division 1, group b; nema types 4x/7/9, atex certified, glass vp, cast aluminum
c2 series explosion proof housing with slotted 40mm o.c. arm, standard approvals: ul/cul class i, division 1, group b; nema types 4x/7/9, atex certified, glass vp, safety blue