Hammond 1590W Series Watertight Diecast Aluminium Enclosures – Natural – Hammond 1590WB, This Hammond 1590WB enclosure measures 111.5 x 59.5 x 31mm and is part of a range of natural finished, watertight diecast aluminium boxes suitable for a wide range of applications. Hammond 1590WB Watertight Diecast Enclosure Natural (111.5 x 59.5 x 31mm)