Hammond 1590W Series Watertight Diecast Aluminium Enclosures – Natural – Hammond 1590WB3, This Hammond 1590WB3 enclosure measures 116 x 77 x 38mm and is part of a range of natural finished, watertight diecast aluminium boxes suitable for a wide range of applications. Hammond 1590WB3 Watertight Diecast Enclosure 116 x 77 x 38