Hammond 1590W Series Watertight Diecast Aluminium Enclosures – Natural – Hammond 1590WU, This Hammond 1590WU enclosure measures 119.5 x 119.5 x 59mm and is part of a range of natural finished, watertight diecast aluminium boxes suitable for a wide range of applications. Hammond 1590WU Watertight Diecast Enclosure Natural (119.5 x 119.5 x 59mm)