Hammond's 1590ZGRP series enclosures are robust, watertight enclosures designed for industrial applications. Constructed from glass reinforced polyester, these enclosures offer excellent durability and protection against environmental factors. They feature a gasketed lid with a tongue and groove design, ensuring a secure and watertight seal. Internal mounting shelves and bonding/mounting nuts are molded in for easy installation. Optional galvanized steel inner panels are available for added functionality. These enclosures are ideal for control panels, electrical boxes, and other applications requiring a durable and reliable enclosure.