Constructed of solid weatherproof materials, UL listed, CSA listed, NEMA 3R and NEMA 4 rated for wet locations * CLS Series inline connectors have a non-conductive retaining screw which passes through the metal contact and fastens at both ends to the retaining ring, providing maximum resistance to excessive torque loading * All CLS products mate precisely with all other manufacturers" cam products * UL listed and CSA certified