Hammond 1590W Series Watertight Diecast Aluminium Enclosures – Natural – Hammond 1590WA, This Hammond 1590WA enclosure measures 92.5 x 38.5 x 31mm and is part of a range of natural finished, watertight diecast aluminium boxes suitable for a wide range of applications. Hammond 1590WA Watertight Diecast Enclosure Natural (92.5 x 38.5 x 31mm)