Hammond 1590w series watertight diecast aluminium enclosures natural hammond 1590wn1 this hammond 1590wn1 enclosure measures 121 x 66 x 40mm and is part of a range of natural finished watertight diecast aluminium boxes suitable for a wide range of applications hammond 1590wn1 watertight diecast enclosure natural 121 x 66 x 40mm