Hammond 1590W Series Watertight Diecast Aluminium Enclosures – Natural – Hammond 1590WP1, This Hammond 1590WP1 enclosure measures 153 x 82 x 50mm and is part of a range of natural finished, watertight diecast aluminium boxes suitable for a wide range of applications. Hammond 1590WP1 Watertight Diecast Enclosure Natural (153 x 82 x 50mm)