Crouse-Hinds Myers™ Insulated ground hub of trade size 1-Inch, is suitable for use with rigid/IMC conduit. Ground hub with male NPSM connection, has Lexan® insulation and Posi-Lok insulated throat. It features zinc construction and has natural finish. It is useful in the termination of electrical circuits through wall of the enclosure. This ground hub is perfect for pharmaceutical, chemical and food processing, pulp/paper, nuclear, solar and commercial construction applications. Captive O-ring gasket ensures water and dust-tight installation. It has NEMA 2, 3, 3R, 4, 4X, 12 rating. Ground hub is UL/cUL listed and CSA certified.