The PT6 are weatherproof designed. These 3 port NIB housing feature a rear entry port, 2 side knockouts, 1 interior LB knockout and pipe adapters for easy access. The upper conduit adapter accepts diameters of 1 1/4" and 2 1/2" steel, while the lower conduit adapter accommodates diameters of 3/4", 1", and 2". Standard color is grey.