Hammond 1590W Series Watertight Diecast Aluminium Enclosures – Natural – Hammond 1590WLLB, This Hammond 1590WLLB enclosure measures 50 x 50 x 25mm and is part of a range of natural finished, watertight diecast aluminium boxes suitable for a wide range of applications. Hammond 1590WLLB Watertight Diecast Enclosure Natural (50 x 50 x 25mm)