Hammond 1590W Series Watertight Diecast Aluminium Enclosures – Natural – Hammond 1590WDD, This Hammond 1590WDD enclosure measures 187.5 x 119.5 x 37mm and is part of a range of natural finished, watertight diecast aluminium boxes suitable for a wide range of applications. Hammond 1590WDD Watertight Diecast Enclosure Natural (187.5 x 119.5 x 37mm)